diff --git a/L2J_Mobius_1.0_Ertheia/dist/game/config/Custom/DualboxCheck.ini b/L2J_Mobius_1.0_Ertheia/dist/game/config/Custom/DualboxCheck.ini
index 19cf3f4004..51168272f1 100644
--- a/L2J_Mobius_1.0_Ertheia/dist/game/config/Custom/DualboxCheck.ini
+++ b/L2J_Mobius_1.0_Ertheia/dist/game/config/Custom/DualboxCheck.ini
@@ -14,6 +14,10 @@ DualboxCheckMaxOlympiadParticipantsPerIP = 0
 # Default: 0 (unlimited)
 DualboxCheckMaxL2EventParticipantsPerIP = 0
 
+# Count offline traders as dualbox.
+# Default: False
+DualboxCountOfflineTraders = False
+
 # Whitelist of the addresses for dualbox checks.
 # Format: Address1,Number1;Address2,Number2...
 # Network address can be number (127.0.0.1) or symbolic (localhost) formats.
diff --git a/L2J_Mobius_1.0_Ertheia/java/com/l2jmobius/Config.java b/L2J_Mobius_1.0_Ertheia/java/com/l2jmobius/Config.java
index 13d83a6dd0..7293a9b365 100644
--- a/L2J_Mobius_1.0_Ertheia/java/com/l2jmobius/Config.java
+++ b/L2J_Mobius_1.0_Ertheia/java/com/l2jmobius/Config.java
@@ -1036,6 +1036,7 @@ public final class Config
 	public static int DUALBOX_CHECK_MAX_PLAYERS_PER_IP;
 	public static int DUALBOX_CHECK_MAX_OLYMPIAD_PARTICIPANTS_PER_IP;
 	public static int DUALBOX_CHECK_MAX_L2EVENT_PARTICIPANTS_PER_IP;
+	public static boolean DUALBOX_COUNT_OFFLINE_TRADERS;
 	public static Map<Integer, Integer> DUALBOX_CHECK_WHITELIST;
 	public static boolean ALLOW_CHANGE_PASSWORD;
 	public static boolean ALLOW_HUMAN;
@@ -2423,6 +2424,7 @@ public final class Config
 			DUALBOX_CHECK_MAX_PLAYERS_PER_IP = DualboxCheck.getInt("DualboxCheckMaxPlayersPerIP", 0);
 			DUALBOX_CHECK_MAX_OLYMPIAD_PARTICIPANTS_PER_IP = DualboxCheck.getInt("DualboxCheckMaxOlympiadParticipantsPerIP", 0);
 			DUALBOX_CHECK_MAX_L2EVENT_PARTICIPANTS_PER_IP = DualboxCheck.getInt("DualboxCheckMaxL2EventParticipantsPerIP", 0);
+			DUALBOX_COUNT_OFFLINE_TRADERS = DualboxCheck.getBoolean("DualboxCountOfflineTraders", false);
 			final String[] dualboxCheckWhiteList = DualboxCheck.getString("DualboxCheckWhitelist", "127.0.0.1,0").split(";");
 			DUALBOX_CHECK_WHITELIST = new HashMap<>(dualboxCheckWhiteList.length);
 			for (String entry : dualboxCheckWhiteList)
diff --git a/L2J_Mobius_1.0_Ertheia/java/com/l2jmobius/gameserver/instancemanager/AntiFeedManager.java b/L2J_Mobius_1.0_Ertheia/java/com/l2jmobius/gameserver/instancemanager/AntiFeedManager.java
index 4b77cc607e..a0c117672f 100644
--- a/L2J_Mobius_1.0_Ertheia/java/com/l2jmobius/gameserver/instancemanager/AntiFeedManager.java
+++ b/L2J_Mobius_1.0_Ertheia/java/com/l2jmobius/gameserver/instancemanager/AntiFeedManager.java
@@ -21,6 +21,7 @@ import java.util.concurrent.ConcurrentHashMap;
 import java.util.concurrent.atomic.AtomicInteger;
 
 import com.l2jmobius.Config;
+import com.l2jmobius.gameserver.model.L2World;
 import com.l2jmobius.gameserver.model.actor.L2Character;
 import com.l2jmobius.gameserver.model.actor.instance.L2PcInstance;
 import com.l2jmobius.gameserver.network.L2GameClient;
@@ -158,9 +159,20 @@ public final class AntiFeedManager
 		}
 		
 		final Integer addrHash = Integer.valueOf(client.getConnectionAddress().hashCode());
-		
 		final AtomicInteger connectionCount = event.computeIfAbsent(addrHash, k -> new AtomicInteger());
 		
+		if (!Config.DUALBOX_COUNT_OFFLINE_TRADERS)
+		{
+			final String address = client.getConnectionAddress().getHostAddress();
+			for (L2PcInstance player : L2World.getInstance().getPlayers())
+			{
+				if (((player.getClient() == null) || player.getClient().isDetached()) && player.getIPAddress().equals(address))
+				{
+					connectionCount.decrementAndGet();
+				}
+			}
+		}
+		
 		if ((connectionCount.get() + 1) <= (max + Config.DUALBOX_CHECK_WHITELIST.getOrDefault(addrHash, 0)))
 		{
 			connectionCount.incrementAndGet();
diff --git a/L2J_Mobius_1.0_Ertheia/java/com/l2jmobius/gameserver/model/actor/instance/L2PcInstance.java b/L2J_Mobius_1.0_Ertheia/java/com/l2jmobius/gameserver/model/actor/instance/L2PcInstance.java
index 6201400953..d754640714 100644
--- a/L2J_Mobius_1.0_Ertheia/java/com/l2jmobius/gameserver/model/actor/instance/L2PcInstance.java
+++ b/L2J_Mobius_1.0_Ertheia/java/com/l2jmobius/gameserver/model/actor/instance/L2PcInstance.java
@@ -404,6 +404,7 @@ public final class L2PcInstance extends L2Playable
 	private int _pcCafePoints = 0;
 	
 	private L2GameClient _client;
+	private String _ip = "N/A";
 	
 	private final String _accountName;
 	private long _deleteTimer;
@@ -3940,16 +3941,15 @@ public final class L2PcInstance extends L2Playable
 	public void setClient(L2GameClient client)
 	{
 		_client = client;
+		if ((_client != null) && (_client.getConnectionAddress() != null))
+		{
+			_ip = _client.getConnectionAddress().getHostAddress();
+		}
 	}
 	
 	public String getIPAddress()
 	{
-		String ip = "N/A";
-		if ((_client != null) && (_client.getConnectionAddress() != null))
-		{
-			ip = _client.getConnectionAddress().getHostAddress();
-		}
-		return ip;
+		return _ip;
 	}
 	
 	public Location getCurrentSkillWorldPosition()
diff --git a/L2J_Mobius_2.5_Underground/dist/game/config/Custom/DualboxCheck.ini b/L2J_Mobius_2.5_Underground/dist/game/config/Custom/DualboxCheck.ini
index 19cf3f4004..51168272f1 100644
--- a/L2J_Mobius_2.5_Underground/dist/game/config/Custom/DualboxCheck.ini
+++ b/L2J_Mobius_2.5_Underground/dist/game/config/Custom/DualboxCheck.ini
@@ -14,6 +14,10 @@ DualboxCheckMaxOlympiadParticipantsPerIP = 0
 # Default: 0 (unlimited)
 DualboxCheckMaxL2EventParticipantsPerIP = 0
 
+# Count offline traders as dualbox.
+# Default: False
+DualboxCountOfflineTraders = False
+
 # Whitelist of the addresses for dualbox checks.
 # Format: Address1,Number1;Address2,Number2...
 # Network address can be number (127.0.0.1) or symbolic (localhost) formats.
diff --git a/L2J_Mobius_2.5_Underground/java/com/l2jmobius/Config.java b/L2J_Mobius_2.5_Underground/java/com/l2jmobius/Config.java
index 115c276fe4..00b33207a5 100644
--- a/L2J_Mobius_2.5_Underground/java/com/l2jmobius/Config.java
+++ b/L2J_Mobius_2.5_Underground/java/com/l2jmobius/Config.java
@@ -1043,6 +1043,7 @@ public final class Config
 	public static int DUALBOX_CHECK_MAX_PLAYERS_PER_IP;
 	public static int DUALBOX_CHECK_MAX_OLYMPIAD_PARTICIPANTS_PER_IP;
 	public static int DUALBOX_CHECK_MAX_L2EVENT_PARTICIPANTS_PER_IP;
+	public static boolean DUALBOX_COUNT_OFFLINE_TRADERS;
 	public static Map<Integer, Integer> DUALBOX_CHECK_WHITELIST;
 	public static boolean ALLOW_CHANGE_PASSWORD;
 	public static boolean ALLOW_HUMAN;
@@ -2439,6 +2440,7 @@ public final class Config
 			DUALBOX_CHECK_MAX_PLAYERS_PER_IP = DualboxCheck.getInt("DualboxCheckMaxPlayersPerIP", 0);
 			DUALBOX_CHECK_MAX_OLYMPIAD_PARTICIPANTS_PER_IP = DualboxCheck.getInt("DualboxCheckMaxOlympiadParticipantsPerIP", 0);
 			DUALBOX_CHECK_MAX_L2EVENT_PARTICIPANTS_PER_IP = DualboxCheck.getInt("DualboxCheckMaxL2EventParticipantsPerIP", 0);
+			DUALBOX_COUNT_OFFLINE_TRADERS = DualboxCheck.getBoolean("DualboxCountOfflineTraders", false);
 			final String[] dualboxCheckWhiteList = DualboxCheck.getString("DualboxCheckWhitelist", "127.0.0.1,0").split(";");
 			DUALBOX_CHECK_WHITELIST = new HashMap<>(dualboxCheckWhiteList.length);
 			for (String entry : dualboxCheckWhiteList)
diff --git a/L2J_Mobius_2.5_Underground/java/com/l2jmobius/gameserver/instancemanager/AntiFeedManager.java b/L2J_Mobius_2.5_Underground/java/com/l2jmobius/gameserver/instancemanager/AntiFeedManager.java
index 4b77cc607e..a0c117672f 100644
--- a/L2J_Mobius_2.5_Underground/java/com/l2jmobius/gameserver/instancemanager/AntiFeedManager.java
+++ b/L2J_Mobius_2.5_Underground/java/com/l2jmobius/gameserver/instancemanager/AntiFeedManager.java
@@ -21,6 +21,7 @@ import java.util.concurrent.ConcurrentHashMap;
 import java.util.concurrent.atomic.AtomicInteger;
 
 import com.l2jmobius.Config;
+import com.l2jmobius.gameserver.model.L2World;
 import com.l2jmobius.gameserver.model.actor.L2Character;
 import com.l2jmobius.gameserver.model.actor.instance.L2PcInstance;
 import com.l2jmobius.gameserver.network.L2GameClient;
@@ -158,9 +159,20 @@ public final class AntiFeedManager
 		}
 		
 		final Integer addrHash = Integer.valueOf(client.getConnectionAddress().hashCode());
-		
 		final AtomicInteger connectionCount = event.computeIfAbsent(addrHash, k -> new AtomicInteger());
 		
+		if (!Config.DUALBOX_COUNT_OFFLINE_TRADERS)
+		{
+			final String address = client.getConnectionAddress().getHostAddress();
+			for (L2PcInstance player : L2World.getInstance().getPlayers())
+			{
+				if (((player.getClient() == null) || player.getClient().isDetached()) && player.getIPAddress().equals(address))
+				{
+					connectionCount.decrementAndGet();
+				}
+			}
+		}
+		
 		if ((connectionCount.get() + 1) <= (max + Config.DUALBOX_CHECK_WHITELIST.getOrDefault(addrHash, 0)))
 		{
 			connectionCount.incrementAndGet();
diff --git a/L2J_Mobius_2.5_Underground/java/com/l2jmobius/gameserver/model/actor/instance/L2PcInstance.java b/L2J_Mobius_2.5_Underground/java/com/l2jmobius/gameserver/model/actor/instance/L2PcInstance.java
index 6831d4812b..057fcec7b5 100644
--- a/L2J_Mobius_2.5_Underground/java/com/l2jmobius/gameserver/model/actor/instance/L2PcInstance.java
+++ b/L2J_Mobius_2.5_Underground/java/com/l2jmobius/gameserver/model/actor/instance/L2PcInstance.java
@@ -406,6 +406,7 @@ public final class L2PcInstance extends L2Playable
 	private int _pcCafePoints = 0;
 	
 	private L2GameClient _client;
+	private String _ip = "N/A";
 	
 	private final String _accountName;
 	private long _deleteTimer;
@@ -3946,16 +3947,15 @@ public final class L2PcInstance extends L2Playable
 	public void setClient(L2GameClient client)
 	{
 		_client = client;
+		if ((_client != null) && (_client.getConnectionAddress() != null))
+		{
+			_ip = _client.getConnectionAddress().getHostAddress();
+		}
 	}
 	
 	public String getIPAddress()
 	{
-		String ip = "N/A";
-		if ((_client != null) && (_client.getConnectionAddress() != null))
-		{
-			ip = _client.getConnectionAddress().getHostAddress();
-		}
-		return ip;
+		return _ip;
 	}
 	
 	public Location getCurrentSkillWorldPosition()
diff --git a/L2J_Mobius_3.0_Helios/dist/game/config/Custom/DualboxCheck.ini b/L2J_Mobius_3.0_Helios/dist/game/config/Custom/DualboxCheck.ini
index 19cf3f4004..51168272f1 100644
--- a/L2J_Mobius_3.0_Helios/dist/game/config/Custom/DualboxCheck.ini
+++ b/L2J_Mobius_3.0_Helios/dist/game/config/Custom/DualboxCheck.ini
@@ -14,6 +14,10 @@ DualboxCheckMaxOlympiadParticipantsPerIP = 0
 # Default: 0 (unlimited)
 DualboxCheckMaxL2EventParticipantsPerIP = 0
 
+# Count offline traders as dualbox.
+# Default: False
+DualboxCountOfflineTraders = False
+
 # Whitelist of the addresses for dualbox checks.
 # Format: Address1,Number1;Address2,Number2...
 # Network address can be number (127.0.0.1) or symbolic (localhost) formats.
diff --git a/L2J_Mobius_3.0_Helios/java/com/l2jmobius/Config.java b/L2J_Mobius_3.0_Helios/java/com/l2jmobius/Config.java
index d956b059f9..b86a2c4b1d 100644
--- a/L2J_Mobius_3.0_Helios/java/com/l2jmobius/Config.java
+++ b/L2J_Mobius_3.0_Helios/java/com/l2jmobius/Config.java
@@ -1051,6 +1051,7 @@ public final class Config
 	public static int DUALBOX_CHECK_MAX_PLAYERS_PER_IP;
 	public static int DUALBOX_CHECK_MAX_OLYMPIAD_PARTICIPANTS_PER_IP;
 	public static int DUALBOX_CHECK_MAX_L2EVENT_PARTICIPANTS_PER_IP;
+	public static boolean DUALBOX_COUNT_OFFLINE_TRADERS;
 	public static Map<Integer, Integer> DUALBOX_CHECK_WHITELIST;
 	public static boolean ALLOW_CHANGE_PASSWORD;
 	public static boolean ALLOW_HUMAN;
@@ -2454,6 +2455,7 @@ public final class Config
 			DUALBOX_CHECK_MAX_PLAYERS_PER_IP = DualboxCheck.getInt("DualboxCheckMaxPlayersPerIP", 0);
 			DUALBOX_CHECK_MAX_OLYMPIAD_PARTICIPANTS_PER_IP = DualboxCheck.getInt("DualboxCheckMaxOlympiadParticipantsPerIP", 0);
 			DUALBOX_CHECK_MAX_L2EVENT_PARTICIPANTS_PER_IP = DualboxCheck.getInt("DualboxCheckMaxL2EventParticipantsPerIP", 0);
+			DUALBOX_COUNT_OFFLINE_TRADERS = DualboxCheck.getBoolean("DualboxCountOfflineTraders", false);
 			final String[] dualboxCheckWhiteList = DualboxCheck.getString("DualboxCheckWhitelist", "127.0.0.1,0").split(";");
 			DUALBOX_CHECK_WHITELIST = new HashMap<>(dualboxCheckWhiteList.length);
 			for (String entry : dualboxCheckWhiteList)
diff --git a/L2J_Mobius_3.0_Helios/java/com/l2jmobius/gameserver/instancemanager/AntiFeedManager.java b/L2J_Mobius_3.0_Helios/java/com/l2jmobius/gameserver/instancemanager/AntiFeedManager.java
index 4b77cc607e..a0c117672f 100644
--- a/L2J_Mobius_3.0_Helios/java/com/l2jmobius/gameserver/instancemanager/AntiFeedManager.java
+++ b/L2J_Mobius_3.0_Helios/java/com/l2jmobius/gameserver/instancemanager/AntiFeedManager.java
@@ -21,6 +21,7 @@ import java.util.concurrent.ConcurrentHashMap;
 import java.util.concurrent.atomic.AtomicInteger;
 
 import com.l2jmobius.Config;
+import com.l2jmobius.gameserver.model.L2World;
 import com.l2jmobius.gameserver.model.actor.L2Character;
 import com.l2jmobius.gameserver.model.actor.instance.L2PcInstance;
 import com.l2jmobius.gameserver.network.L2GameClient;
@@ -158,9 +159,20 @@ public final class AntiFeedManager
 		}
 		
 		final Integer addrHash = Integer.valueOf(client.getConnectionAddress().hashCode());
-		
 		final AtomicInteger connectionCount = event.computeIfAbsent(addrHash, k -> new AtomicInteger());
 		
+		if (!Config.DUALBOX_COUNT_OFFLINE_TRADERS)
+		{
+			final String address = client.getConnectionAddress().getHostAddress();
+			for (L2PcInstance player : L2World.getInstance().getPlayers())
+			{
+				if (((player.getClient() == null) || player.getClient().isDetached()) && player.getIPAddress().equals(address))
+				{
+					connectionCount.decrementAndGet();
+				}
+			}
+		}
+		
 		if ((connectionCount.get() + 1) <= (max + Config.DUALBOX_CHECK_WHITELIST.getOrDefault(addrHash, 0)))
 		{
 			connectionCount.incrementAndGet();
diff --git a/L2J_Mobius_3.0_Helios/java/com/l2jmobius/gameserver/model/actor/instance/L2PcInstance.java b/L2J_Mobius_3.0_Helios/java/com/l2jmobius/gameserver/model/actor/instance/L2PcInstance.java
index 5e70c11fd8..0dc2b5badd 100644
--- a/L2J_Mobius_3.0_Helios/java/com/l2jmobius/gameserver/model/actor/instance/L2PcInstance.java
+++ b/L2J_Mobius_3.0_Helios/java/com/l2jmobius/gameserver/model/actor/instance/L2PcInstance.java
@@ -408,6 +408,7 @@ public final class L2PcInstance extends L2Playable
 	private int _pcCafePoints = 0;
 	
 	private L2GameClient _client;
+	private String _ip = "N/A";
 	
 	private final String _accountName;
 	private long _deleteTimer;
@@ -3948,16 +3949,15 @@ public final class L2PcInstance extends L2Playable
 	public void setClient(L2GameClient client)
 	{
 		_client = client;
+		if ((_client != null) && (_client.getConnectionAddress() != null))
+		{
+			_ip = _client.getConnectionAddress().getHostAddress();
+		}
 	}
 	
 	public String getIPAddress()
 	{
-		String ip = "N/A";
-		if ((_client != null) && (_client.getConnectionAddress() != null))
-		{
-			ip = _client.getConnectionAddress().getHostAddress();
-		}
-		return ip;
+		return _ip;
 	}
 	
 	public Location getCurrentSkillWorldPosition()
diff --git a/L2J_Mobius_4.0_GrandCrusade/dist/game/config/Custom/DualboxCheck.ini b/L2J_Mobius_4.0_GrandCrusade/dist/game/config/Custom/DualboxCheck.ini
index 19cf3f4004..51168272f1 100644
--- a/L2J_Mobius_4.0_GrandCrusade/dist/game/config/Custom/DualboxCheck.ini
+++ b/L2J_Mobius_4.0_GrandCrusade/dist/game/config/Custom/DualboxCheck.ini
@@ -14,6 +14,10 @@ DualboxCheckMaxOlympiadParticipantsPerIP = 0
 # Default: 0 (unlimited)
 DualboxCheckMaxL2EventParticipantsPerIP = 0
 
+# Count offline traders as dualbox.
+# Default: False
+DualboxCountOfflineTraders = False
+
 # Whitelist of the addresses for dualbox checks.
 # Format: Address1,Number1;Address2,Number2...
 # Network address can be number (127.0.0.1) or symbolic (localhost) formats.
diff --git a/L2J_Mobius_4.0_GrandCrusade/java/com/l2jmobius/Config.java b/L2J_Mobius_4.0_GrandCrusade/java/com/l2jmobius/Config.java
index 0e08e14d49..32520c030a 100644
--- a/L2J_Mobius_4.0_GrandCrusade/java/com/l2jmobius/Config.java
+++ b/L2J_Mobius_4.0_GrandCrusade/java/com/l2jmobius/Config.java
@@ -1044,6 +1044,7 @@ public final class Config
 	public static int DUALBOX_CHECK_MAX_PLAYERS_PER_IP;
 	public static int DUALBOX_CHECK_MAX_OLYMPIAD_PARTICIPANTS_PER_IP;
 	public static int DUALBOX_CHECK_MAX_L2EVENT_PARTICIPANTS_PER_IP;
+	public static boolean DUALBOX_COUNT_OFFLINE_TRADERS;
 	public static Map<Integer, Integer> DUALBOX_CHECK_WHITELIST;
 	public static boolean ALLOW_CHANGE_PASSWORD;
 	public static boolean ALLOW_HUMAN;
@@ -2440,6 +2441,7 @@ public final class Config
 			DUALBOX_CHECK_MAX_PLAYERS_PER_IP = DualboxCheck.getInt("DualboxCheckMaxPlayersPerIP", 0);
 			DUALBOX_CHECK_MAX_OLYMPIAD_PARTICIPANTS_PER_IP = DualboxCheck.getInt("DualboxCheckMaxOlympiadParticipantsPerIP", 0);
 			DUALBOX_CHECK_MAX_L2EVENT_PARTICIPANTS_PER_IP = DualboxCheck.getInt("DualboxCheckMaxL2EventParticipantsPerIP", 0);
+			DUALBOX_COUNT_OFFLINE_TRADERS = DualboxCheck.getBoolean("DualboxCountOfflineTraders", false);
 			final String[] dualboxCheckWhiteList = DualboxCheck.getString("DualboxCheckWhitelist", "127.0.0.1,0").split(";");
 			DUALBOX_CHECK_WHITELIST = new HashMap<>(dualboxCheckWhiteList.length);
 			for (String entry : dualboxCheckWhiteList)
diff --git a/L2J_Mobius_4.0_GrandCrusade/java/com/l2jmobius/gameserver/instancemanager/AntiFeedManager.java b/L2J_Mobius_4.0_GrandCrusade/java/com/l2jmobius/gameserver/instancemanager/AntiFeedManager.java
index 4b77cc607e..a0c117672f 100644
--- a/L2J_Mobius_4.0_GrandCrusade/java/com/l2jmobius/gameserver/instancemanager/AntiFeedManager.java
+++ b/L2J_Mobius_4.0_GrandCrusade/java/com/l2jmobius/gameserver/instancemanager/AntiFeedManager.java
@@ -21,6 +21,7 @@ import java.util.concurrent.ConcurrentHashMap;
 import java.util.concurrent.atomic.AtomicInteger;
 
 import com.l2jmobius.Config;
+import com.l2jmobius.gameserver.model.L2World;
 import com.l2jmobius.gameserver.model.actor.L2Character;
 import com.l2jmobius.gameserver.model.actor.instance.L2PcInstance;
 import com.l2jmobius.gameserver.network.L2GameClient;
@@ -158,9 +159,20 @@ public final class AntiFeedManager
 		}
 		
 		final Integer addrHash = Integer.valueOf(client.getConnectionAddress().hashCode());
-		
 		final AtomicInteger connectionCount = event.computeIfAbsent(addrHash, k -> new AtomicInteger());
 		
+		if (!Config.DUALBOX_COUNT_OFFLINE_TRADERS)
+		{
+			final String address = client.getConnectionAddress().getHostAddress();
+			for (L2PcInstance player : L2World.getInstance().getPlayers())
+			{
+				if (((player.getClient() == null) || player.getClient().isDetached()) && player.getIPAddress().equals(address))
+				{
+					connectionCount.decrementAndGet();
+				}
+			}
+		}
+		
 		if ((connectionCount.get() + 1) <= (max + Config.DUALBOX_CHECK_WHITELIST.getOrDefault(addrHash, 0)))
 		{
 			connectionCount.incrementAndGet();
diff --git a/L2J_Mobius_4.0_GrandCrusade/java/com/l2jmobius/gameserver/model/actor/instance/L2PcInstance.java b/L2J_Mobius_4.0_GrandCrusade/java/com/l2jmobius/gameserver/model/actor/instance/L2PcInstance.java
index c8a3994c0d..ee2a965440 100644
--- a/L2J_Mobius_4.0_GrandCrusade/java/com/l2jmobius/gameserver/model/actor/instance/L2PcInstance.java
+++ b/L2J_Mobius_4.0_GrandCrusade/java/com/l2jmobius/gameserver/model/actor/instance/L2PcInstance.java
@@ -413,6 +413,7 @@ public final class L2PcInstance extends L2Playable
 	private int _pcCafePoints = 0;
 	
 	private L2GameClient _client;
+	private String _ip = "N/A";
 	
 	private final String _accountName;
 	private long _deleteTimer;
@@ -3939,16 +3940,15 @@ public final class L2PcInstance extends L2Playable
 	public void setClient(L2GameClient client)
 	{
 		_client = client;
+		if ((_client != null) && (_client.getConnectionAddress() != null))
+		{
+			_ip = _client.getConnectionAddress().getHostAddress();
+		}
 	}
 	
 	public String getIPAddress()
 	{
-		String ip = "N/A";
-		if ((_client != null) && (_client.getConnectionAddress() != null))
-		{
-			ip = _client.getConnectionAddress().getHostAddress();
-		}
-		return ip;
+		return _ip;
 	}
 	
 	public Location getCurrentSkillWorldPosition()
diff --git a/L2J_Mobius_CT_2.6_HighFive/dist/game/config/Custom/DualboxCheck.ini b/L2J_Mobius_CT_2.6_HighFive/dist/game/config/Custom/DualboxCheck.ini
index 19cf3f4004..51168272f1 100644
--- a/L2J_Mobius_CT_2.6_HighFive/dist/game/config/Custom/DualboxCheck.ini
+++ b/L2J_Mobius_CT_2.6_HighFive/dist/game/config/Custom/DualboxCheck.ini
@@ -14,6 +14,10 @@ DualboxCheckMaxOlympiadParticipantsPerIP = 0
 # Default: 0 (unlimited)
 DualboxCheckMaxL2EventParticipantsPerIP = 0
 
+# Count offline traders as dualbox.
+# Default: False
+DualboxCountOfflineTraders = False
+
 # Whitelist of the addresses for dualbox checks.
 # Format: Address1,Number1;Address2,Number2...
 # Network address can be number (127.0.0.1) or symbolic (localhost) formats.
diff --git a/L2J_Mobius_CT_2.6_HighFive/java/com/l2jmobius/Config.java b/L2J_Mobius_CT_2.6_HighFive/java/com/l2jmobius/Config.java
index 9032d3aa0d..aad82b0fcb 100644
--- a/L2J_Mobius_CT_2.6_HighFive/java/com/l2jmobius/Config.java
+++ b/L2J_Mobius_CT_2.6_HighFive/java/com/l2jmobius/Config.java
@@ -1227,6 +1227,7 @@ public final class Config
 	public static int DUALBOX_CHECK_MAX_PLAYERS_PER_IP;
 	public static int DUALBOX_CHECK_MAX_OLYMPIAD_PARTICIPANTS_PER_IP;
 	public static int DUALBOX_CHECK_MAX_L2EVENT_PARTICIPANTS_PER_IP;
+	public static boolean DUALBOX_COUNT_OFFLINE_TRADERS;
 	public static Map<Integer, Integer> DUALBOX_CHECK_WHITELIST;
 	public static boolean ALLOW_CHANGE_PASSWORD;
 	public static boolean ALLOW_HUMAN;
@@ -2758,6 +2759,7 @@ public final class Config
 			DUALBOX_CHECK_MAX_PLAYERS_PER_IP = DualboxCheck.getInt("DualboxCheckMaxPlayersPerIP", 0);
 			DUALBOX_CHECK_MAX_OLYMPIAD_PARTICIPANTS_PER_IP = DualboxCheck.getInt("DualboxCheckMaxOlympiadParticipantsPerIP", 0);
 			DUALBOX_CHECK_MAX_L2EVENT_PARTICIPANTS_PER_IP = DualboxCheck.getInt("DualboxCheckMaxL2EventParticipantsPerIP", 0);
+			DUALBOX_COUNT_OFFLINE_TRADERS = DualboxCheck.getBoolean("DualboxCountOfflineTraders", false);
 			final String[] dualboxCheckWhiteList = DualboxCheck.getString("DualboxCheckWhitelist", "127.0.0.1,0").split(";");
 			DUALBOX_CHECK_WHITELIST = new HashMap<>(dualboxCheckWhiteList.length);
 			for (String entry : dualboxCheckWhiteList)
diff --git a/L2J_Mobius_CT_2.6_HighFive/java/com/l2jmobius/gameserver/instancemanager/AntiFeedManager.java b/L2J_Mobius_CT_2.6_HighFive/java/com/l2jmobius/gameserver/instancemanager/AntiFeedManager.java
index dcfe2daa10..da1f2edd65 100644
--- a/L2J_Mobius_CT_2.6_HighFive/java/com/l2jmobius/gameserver/instancemanager/AntiFeedManager.java
+++ b/L2J_Mobius_CT_2.6_HighFive/java/com/l2jmobius/gameserver/instancemanager/AntiFeedManager.java
@@ -21,6 +21,7 @@ import java.util.concurrent.ConcurrentHashMap;
 import java.util.concurrent.atomic.AtomicInteger;
 
 import com.l2jmobius.Config;
+import com.l2jmobius.gameserver.model.L2World;
 import com.l2jmobius.gameserver.model.actor.L2Character;
 import com.l2jmobius.gameserver.model.actor.instance.L2PcInstance;
 import com.l2jmobius.gameserver.network.L2GameClient;
@@ -158,9 +159,20 @@ public final class AntiFeedManager
 		}
 		
 		final Integer addrHash = Integer.valueOf(client.getConnectionAddress().hashCode());
-		
 		final AtomicInteger connectionCount = event.computeIfAbsent(addrHash, k -> new AtomicInteger());
 		
+		if (!Config.DUALBOX_COUNT_OFFLINE_TRADERS)
+		{
+			final String address = client.getConnectionAddress().getHostAddress();
+			for (L2PcInstance player : L2World.getInstance().getPlayers())
+			{
+				if (((player.getClient() == null) || player.getClient().isDetached()) && player.getIPAddress().equals(address))
+				{
+					connectionCount.decrementAndGet();
+				}
+			}
+		}
+		
 		if ((connectionCount.get() + 1) <= (max + Config.DUALBOX_CHECK_WHITELIST.getOrDefault(addrHash, 0)))
 		{
 			connectionCount.incrementAndGet();
diff --git a/L2J_Mobius_CT_2.6_HighFive/java/com/l2jmobius/gameserver/model/actor/instance/L2PcInstance.java b/L2J_Mobius_CT_2.6_HighFive/java/com/l2jmobius/gameserver/model/actor/instance/L2PcInstance.java
index 90ae3109da..85bc70f8d9 100644
--- a/L2J_Mobius_CT_2.6_HighFive/java/com/l2jmobius/gameserver/model/actor/instance/L2PcInstance.java
+++ b/L2J_Mobius_CT_2.6_HighFive/java/com/l2jmobius/gameserver/model/actor/instance/L2PcInstance.java
@@ -408,6 +408,7 @@ public final class L2PcInstance extends L2Playable
 	private final List<IEventListener> _eventListeners = new CopyOnWriteArrayList<>();
 	
 	private L2GameClient _client;
+	private String _ip = "N/A";
 	
 	private final String _accountName;
 	private long _deleteTimer;
@@ -3894,16 +3895,15 @@ public final class L2PcInstance extends L2Playable
 	public void setClient(L2GameClient client)
 	{
 		_client = client;
+		if ((_client != null) && (_client.getConnectionAddress() != null))
+		{
+			_ip = _client.getConnectionAddress().getHostAddress();
+		}
 	}
 	
 	public String getIPAddress()
 	{
-		String ip = "N/A";
-		if ((_client != null) && (_client.getConnectionAddress() != null))
-		{
-			ip = _client.getConnectionAddress().getHostAddress();
-		}
-		return ip;
+		return _ip;
 	}
 	
 	public Location getCurrentSkillWorldPosition()
diff --git a/L2J_Mobius_Classic_2.0_Saviors/dist/game/config/Custom/DualboxCheck.ini b/L2J_Mobius_Classic_2.0_Saviors/dist/game/config/Custom/DualboxCheck.ini
index 19cf3f4004..51168272f1 100644
--- a/L2J_Mobius_Classic_2.0_Saviors/dist/game/config/Custom/DualboxCheck.ini
+++ b/L2J_Mobius_Classic_2.0_Saviors/dist/game/config/Custom/DualboxCheck.ini
@@ -14,6 +14,10 @@ DualboxCheckMaxOlympiadParticipantsPerIP = 0
 # Default: 0 (unlimited)
 DualboxCheckMaxL2EventParticipantsPerIP = 0
 
+# Count offline traders as dualbox.
+# Default: False
+DualboxCountOfflineTraders = False
+
 # Whitelist of the addresses for dualbox checks.
 # Format: Address1,Number1;Address2,Number2...
 # Network address can be number (127.0.0.1) or symbolic (localhost) formats.
diff --git a/L2J_Mobius_Classic_2.0_Saviors/java/com/l2jmobius/Config.java b/L2J_Mobius_Classic_2.0_Saviors/java/com/l2jmobius/Config.java
index d3d342b6d1..0e75f4b06f 100644
--- a/L2J_Mobius_Classic_2.0_Saviors/java/com/l2jmobius/Config.java
+++ b/L2J_Mobius_Classic_2.0_Saviors/java/com/l2jmobius/Config.java
@@ -989,6 +989,7 @@ public final class Config
 	public static int DUALBOX_CHECK_MAX_PLAYERS_PER_IP;
 	public static int DUALBOX_CHECK_MAX_OLYMPIAD_PARTICIPANTS_PER_IP;
 	public static int DUALBOX_CHECK_MAX_L2EVENT_PARTICIPANTS_PER_IP;
+	public static boolean DUALBOX_COUNT_OFFLINE_TRADERS;
 	public static Map<Integer, Integer> DUALBOX_CHECK_WHITELIST;
 	public static boolean ALLOW_CHANGE_PASSWORD;
 	public static boolean ALLOW_HUMAN;
@@ -2337,6 +2338,7 @@ public final class Config
 			DUALBOX_CHECK_MAX_PLAYERS_PER_IP = DualboxCheck.getInt("DualboxCheckMaxPlayersPerIP", 0);
 			DUALBOX_CHECK_MAX_OLYMPIAD_PARTICIPANTS_PER_IP = DualboxCheck.getInt("DualboxCheckMaxOlympiadParticipantsPerIP", 0);
 			DUALBOX_CHECK_MAX_L2EVENT_PARTICIPANTS_PER_IP = DualboxCheck.getInt("DualboxCheckMaxL2EventParticipantsPerIP", 0);
+			DUALBOX_COUNT_OFFLINE_TRADERS = DualboxCheck.getBoolean("DualboxCountOfflineTraders", false);
 			final String[] dualboxCheckWhiteList = DualboxCheck.getString("DualboxCheckWhitelist", "127.0.0.1,0").split(";");
 			DUALBOX_CHECK_WHITELIST = new HashMap<>(dualboxCheckWhiteList.length);
 			for (String entry : dualboxCheckWhiteList)
diff --git a/L2J_Mobius_Classic_2.0_Saviors/java/com/l2jmobius/gameserver/instancemanager/AntiFeedManager.java b/L2J_Mobius_Classic_2.0_Saviors/java/com/l2jmobius/gameserver/instancemanager/AntiFeedManager.java
index 4b77cc607e..a0c117672f 100644
--- a/L2J_Mobius_Classic_2.0_Saviors/java/com/l2jmobius/gameserver/instancemanager/AntiFeedManager.java
+++ b/L2J_Mobius_Classic_2.0_Saviors/java/com/l2jmobius/gameserver/instancemanager/AntiFeedManager.java
@@ -21,6 +21,7 @@ import java.util.concurrent.ConcurrentHashMap;
 import java.util.concurrent.atomic.AtomicInteger;
 
 import com.l2jmobius.Config;
+import com.l2jmobius.gameserver.model.L2World;
 import com.l2jmobius.gameserver.model.actor.L2Character;
 import com.l2jmobius.gameserver.model.actor.instance.L2PcInstance;
 import com.l2jmobius.gameserver.network.L2GameClient;
@@ -158,9 +159,20 @@ public final class AntiFeedManager
 		}
 		
 		final Integer addrHash = Integer.valueOf(client.getConnectionAddress().hashCode());
-		
 		final AtomicInteger connectionCount = event.computeIfAbsent(addrHash, k -> new AtomicInteger());
 		
+		if (!Config.DUALBOX_COUNT_OFFLINE_TRADERS)
+		{
+			final String address = client.getConnectionAddress().getHostAddress();
+			for (L2PcInstance player : L2World.getInstance().getPlayers())
+			{
+				if (((player.getClient() == null) || player.getClient().isDetached()) && player.getIPAddress().equals(address))
+				{
+					connectionCount.decrementAndGet();
+				}
+			}
+		}
+		
 		if ((connectionCount.get() + 1) <= (max + Config.DUALBOX_CHECK_WHITELIST.getOrDefault(addrHash, 0)))
 		{
 			connectionCount.incrementAndGet();
diff --git a/L2J_Mobius_Classic_2.0_Saviors/java/com/l2jmobius/gameserver/model/actor/instance/L2PcInstance.java b/L2J_Mobius_Classic_2.0_Saviors/java/com/l2jmobius/gameserver/model/actor/instance/L2PcInstance.java
index fd18661570..ce2b24f1a7 100644
--- a/L2J_Mobius_Classic_2.0_Saviors/java/com/l2jmobius/gameserver/model/actor/instance/L2PcInstance.java
+++ b/L2J_Mobius_Classic_2.0_Saviors/java/com/l2jmobius/gameserver/model/actor/instance/L2PcInstance.java
@@ -405,6 +405,7 @@ public final class L2PcInstance extends L2Playable
 	private int _pcCafePoints = 0;
 	
 	private L2GameClient _client;
+	private String _ip = "N/A";
 	
 	private final String _accountName;
 	private long _deleteTimer;
@@ -3915,16 +3916,15 @@ public final class L2PcInstance extends L2Playable
 	public void setClient(L2GameClient client)
 	{
 		_client = client;
+		if ((_client != null) && (_client.getConnectionAddress() != null))
+		{
+			_ip = _client.getConnectionAddress().getHostAddress();
+		}
 	}
 	
 	public String getIPAddress()
 	{
-		String ip = "N/A";
-		if ((_client != null) && (_client.getConnectionAddress() != null))
-		{
-			ip = _client.getConnectionAddress().getHostAddress();
-		}
-		return ip;
+		return _ip;
 	}
 	
 	public Location getCurrentSkillWorldPosition()
diff --git a/L2J_Mobius_Classic_2.1_Zaken/dist/game/config/Custom/DualboxCheck.ini b/L2J_Mobius_Classic_2.1_Zaken/dist/game/config/Custom/DualboxCheck.ini
index 19cf3f4004..51168272f1 100644
--- a/L2J_Mobius_Classic_2.1_Zaken/dist/game/config/Custom/DualboxCheck.ini
+++ b/L2J_Mobius_Classic_2.1_Zaken/dist/game/config/Custom/DualboxCheck.ini
@@ -14,6 +14,10 @@ DualboxCheckMaxOlympiadParticipantsPerIP = 0
 # Default: 0 (unlimited)
 DualboxCheckMaxL2EventParticipantsPerIP = 0
 
+# Count offline traders as dualbox.
+# Default: False
+DualboxCountOfflineTraders = False
+
 # Whitelist of the addresses for dualbox checks.
 # Format: Address1,Number1;Address2,Number2...
 # Network address can be number (127.0.0.1) or symbolic (localhost) formats.
diff --git a/L2J_Mobius_Classic_2.1_Zaken/java/com/l2jmobius/Config.java b/L2J_Mobius_Classic_2.1_Zaken/java/com/l2jmobius/Config.java
index 53e700c448..76970d0b48 100644
--- a/L2J_Mobius_Classic_2.1_Zaken/java/com/l2jmobius/Config.java
+++ b/L2J_Mobius_Classic_2.1_Zaken/java/com/l2jmobius/Config.java
@@ -993,6 +993,7 @@ public final class Config
 	public static int DUALBOX_CHECK_MAX_PLAYERS_PER_IP;
 	public static int DUALBOX_CHECK_MAX_OLYMPIAD_PARTICIPANTS_PER_IP;
 	public static int DUALBOX_CHECK_MAX_L2EVENT_PARTICIPANTS_PER_IP;
+	public static boolean DUALBOX_COUNT_OFFLINE_TRADERS;
 	public static Map<Integer, Integer> DUALBOX_CHECK_WHITELIST;
 	public static boolean ALLOW_CHANGE_PASSWORD;
 	public static boolean ALLOW_HUMAN;
@@ -2344,6 +2345,7 @@ public final class Config
 			DUALBOX_CHECK_MAX_PLAYERS_PER_IP = DualboxCheck.getInt("DualboxCheckMaxPlayersPerIP", 0);
 			DUALBOX_CHECK_MAX_OLYMPIAD_PARTICIPANTS_PER_IP = DualboxCheck.getInt("DualboxCheckMaxOlympiadParticipantsPerIP", 0);
 			DUALBOX_CHECK_MAX_L2EVENT_PARTICIPANTS_PER_IP = DualboxCheck.getInt("DualboxCheckMaxL2EventParticipantsPerIP", 0);
+			DUALBOX_COUNT_OFFLINE_TRADERS = DualboxCheck.getBoolean("DualboxCountOfflineTraders", false);
 			final String[] dualboxCheckWhiteList = DualboxCheck.getString("DualboxCheckWhitelist", "127.0.0.1,0").split(";");
 			DUALBOX_CHECK_WHITELIST = new HashMap<>(dualboxCheckWhiteList.length);
 			for (String entry : dualboxCheckWhiteList)
diff --git a/L2J_Mobius_Classic_2.1_Zaken/java/com/l2jmobius/gameserver/instancemanager/AntiFeedManager.java b/L2J_Mobius_Classic_2.1_Zaken/java/com/l2jmobius/gameserver/instancemanager/AntiFeedManager.java
index 4b77cc607e..a0c117672f 100644
--- a/L2J_Mobius_Classic_2.1_Zaken/java/com/l2jmobius/gameserver/instancemanager/AntiFeedManager.java
+++ b/L2J_Mobius_Classic_2.1_Zaken/java/com/l2jmobius/gameserver/instancemanager/AntiFeedManager.java
@@ -21,6 +21,7 @@ import java.util.concurrent.ConcurrentHashMap;
 import java.util.concurrent.atomic.AtomicInteger;
 
 import com.l2jmobius.Config;
+import com.l2jmobius.gameserver.model.L2World;
 import com.l2jmobius.gameserver.model.actor.L2Character;
 import com.l2jmobius.gameserver.model.actor.instance.L2PcInstance;
 import com.l2jmobius.gameserver.network.L2GameClient;
@@ -158,9 +159,20 @@ public final class AntiFeedManager
 		}
 		
 		final Integer addrHash = Integer.valueOf(client.getConnectionAddress().hashCode());
-		
 		final AtomicInteger connectionCount = event.computeIfAbsent(addrHash, k -> new AtomicInteger());
 		
+		if (!Config.DUALBOX_COUNT_OFFLINE_TRADERS)
+		{
+			final String address = client.getConnectionAddress().getHostAddress();
+			for (L2PcInstance player : L2World.getInstance().getPlayers())
+			{
+				if (((player.getClient() == null) || player.getClient().isDetached()) && player.getIPAddress().equals(address))
+				{
+					connectionCount.decrementAndGet();
+				}
+			}
+		}
+		
 		if ((connectionCount.get() + 1) <= (max + Config.DUALBOX_CHECK_WHITELIST.getOrDefault(addrHash, 0)))
 		{
 			connectionCount.incrementAndGet();
diff --git a/L2J_Mobius_Classic_2.1_Zaken/java/com/l2jmobius/gameserver/model/actor/instance/L2PcInstance.java b/L2J_Mobius_Classic_2.1_Zaken/java/com/l2jmobius/gameserver/model/actor/instance/L2PcInstance.java
index d11248c99b..c5273dd6d4 100644
--- a/L2J_Mobius_Classic_2.1_Zaken/java/com/l2jmobius/gameserver/model/actor/instance/L2PcInstance.java
+++ b/L2J_Mobius_Classic_2.1_Zaken/java/com/l2jmobius/gameserver/model/actor/instance/L2PcInstance.java
@@ -405,6 +405,7 @@ public final class L2PcInstance extends L2Playable
 	private int _pcCafePoints = 0;
 	
 	private L2GameClient _client;
+	private String _ip = "N/A";
 	
 	private final String _accountName;
 	private long _deleteTimer;
@@ -3916,16 +3917,15 @@ public final class L2PcInstance extends L2Playable
 	public void setClient(L2GameClient client)
 	{
 		_client = client;
+		if ((_client != null) && (_client.getConnectionAddress() != null))
+		{
+			_ip = _client.getConnectionAddress().getHostAddress();
+		}
 	}
 	
 	public String getIPAddress()
 	{
-		String ip = "N/A";
-		if ((_client != null) && (_client.getConnectionAddress() != null))
-		{
-			ip = _client.getConnectionAddress().getHostAddress();
-		}
-		return ip;
+		return _ip;
 	}
 	
 	public Location getCurrentSkillWorldPosition()
diff --git a/L2J_Mobius_Classic_2.2_Antharas/dist/game/config/Custom/DualboxCheck.ini b/L2J_Mobius_Classic_2.2_Antharas/dist/game/config/Custom/DualboxCheck.ini
index 19cf3f4004..51168272f1 100644
--- a/L2J_Mobius_Classic_2.2_Antharas/dist/game/config/Custom/DualboxCheck.ini
+++ b/L2J_Mobius_Classic_2.2_Antharas/dist/game/config/Custom/DualboxCheck.ini
@@ -14,6 +14,10 @@ DualboxCheckMaxOlympiadParticipantsPerIP = 0
 # Default: 0 (unlimited)
 DualboxCheckMaxL2EventParticipantsPerIP = 0
 
+# Count offline traders as dualbox.
+# Default: False
+DualboxCountOfflineTraders = False
+
 # Whitelist of the addresses for dualbox checks.
 # Format: Address1,Number1;Address2,Number2...
 # Network address can be number (127.0.0.1) or symbolic (localhost) formats.
diff --git a/L2J_Mobius_Classic_2.2_Antharas/java/com/l2jmobius/Config.java b/L2J_Mobius_Classic_2.2_Antharas/java/com/l2jmobius/Config.java
index 53e700c448..76970d0b48 100644
--- a/L2J_Mobius_Classic_2.2_Antharas/java/com/l2jmobius/Config.java
+++ b/L2J_Mobius_Classic_2.2_Antharas/java/com/l2jmobius/Config.java
@@ -993,6 +993,7 @@ public final class Config
 	public static int DUALBOX_CHECK_MAX_PLAYERS_PER_IP;
 	public static int DUALBOX_CHECK_MAX_OLYMPIAD_PARTICIPANTS_PER_IP;
 	public static int DUALBOX_CHECK_MAX_L2EVENT_PARTICIPANTS_PER_IP;
+	public static boolean DUALBOX_COUNT_OFFLINE_TRADERS;
 	public static Map<Integer, Integer> DUALBOX_CHECK_WHITELIST;
 	public static boolean ALLOW_CHANGE_PASSWORD;
 	public static boolean ALLOW_HUMAN;
@@ -2344,6 +2345,7 @@ public final class Config
 			DUALBOX_CHECK_MAX_PLAYERS_PER_IP = DualboxCheck.getInt("DualboxCheckMaxPlayersPerIP", 0);
 			DUALBOX_CHECK_MAX_OLYMPIAD_PARTICIPANTS_PER_IP = DualboxCheck.getInt("DualboxCheckMaxOlympiadParticipantsPerIP", 0);
 			DUALBOX_CHECK_MAX_L2EVENT_PARTICIPANTS_PER_IP = DualboxCheck.getInt("DualboxCheckMaxL2EventParticipantsPerIP", 0);
+			DUALBOX_COUNT_OFFLINE_TRADERS = DualboxCheck.getBoolean("DualboxCountOfflineTraders", false);
 			final String[] dualboxCheckWhiteList = DualboxCheck.getString("DualboxCheckWhitelist", "127.0.0.1,0").split(";");
 			DUALBOX_CHECK_WHITELIST = new HashMap<>(dualboxCheckWhiteList.length);
 			for (String entry : dualboxCheckWhiteList)
diff --git a/L2J_Mobius_Classic_2.2_Antharas/java/com/l2jmobius/gameserver/instancemanager/AntiFeedManager.java b/L2J_Mobius_Classic_2.2_Antharas/java/com/l2jmobius/gameserver/instancemanager/AntiFeedManager.java
index 4b77cc607e..a0c117672f 100644
--- a/L2J_Mobius_Classic_2.2_Antharas/java/com/l2jmobius/gameserver/instancemanager/AntiFeedManager.java
+++ b/L2J_Mobius_Classic_2.2_Antharas/java/com/l2jmobius/gameserver/instancemanager/AntiFeedManager.java
@@ -21,6 +21,7 @@ import java.util.concurrent.ConcurrentHashMap;
 import java.util.concurrent.atomic.AtomicInteger;
 
 import com.l2jmobius.Config;
+import com.l2jmobius.gameserver.model.L2World;
 import com.l2jmobius.gameserver.model.actor.L2Character;
 import com.l2jmobius.gameserver.model.actor.instance.L2PcInstance;
 import com.l2jmobius.gameserver.network.L2GameClient;
@@ -158,9 +159,20 @@ public final class AntiFeedManager
 		}
 		
 		final Integer addrHash = Integer.valueOf(client.getConnectionAddress().hashCode());
-		
 		final AtomicInteger connectionCount = event.computeIfAbsent(addrHash, k -> new AtomicInteger());
 		
+		if (!Config.DUALBOX_COUNT_OFFLINE_TRADERS)
+		{
+			final String address = client.getConnectionAddress().getHostAddress();
+			for (L2PcInstance player : L2World.getInstance().getPlayers())
+			{
+				if (((player.getClient() == null) || player.getClient().isDetached()) && player.getIPAddress().equals(address))
+				{
+					connectionCount.decrementAndGet();
+				}
+			}
+		}
+		
 		if ((connectionCount.get() + 1) <= (max + Config.DUALBOX_CHECK_WHITELIST.getOrDefault(addrHash, 0)))
 		{
 			connectionCount.incrementAndGet();
diff --git a/L2J_Mobius_Classic_2.2_Antharas/java/com/l2jmobius/gameserver/model/actor/instance/L2PcInstance.java b/L2J_Mobius_Classic_2.2_Antharas/java/com/l2jmobius/gameserver/model/actor/instance/L2PcInstance.java
index efcae6092f..1582c0394f 100644
--- a/L2J_Mobius_Classic_2.2_Antharas/java/com/l2jmobius/gameserver/model/actor/instance/L2PcInstance.java
+++ b/L2J_Mobius_Classic_2.2_Antharas/java/com/l2jmobius/gameserver/model/actor/instance/L2PcInstance.java
@@ -405,6 +405,7 @@ public final class L2PcInstance extends L2Playable
 	private int _pcCafePoints = 0;
 	
 	private L2GameClient _client;
+	private String _ip = "N/A";
 	
 	private final String _accountName;
 	private long _deleteTimer;
@@ -3916,16 +3917,15 @@ public final class L2PcInstance extends L2Playable
 	public void setClient(L2GameClient client)
 	{
 		_client = client;
+		if ((_client != null) && (_client.getConnectionAddress() != null))
+		{
+			_ip = _client.getConnectionAddress().getHostAddress();
+		}
 	}
 	
 	public String getIPAddress()
 	{
-		String ip = "N/A";
-		if ((_client != null) && (_client.getConnectionAddress() != null))
-		{
-			ip = _client.getConnectionAddress().getHostAddress();
-		}
-		return ip;
+		return _ip;
 	}
 	
 	public Location getCurrentSkillWorldPosition()