diff --git a/OpenSim/Region/ClientStack/LindenUDP/LLPacketHandler.cs b/OpenSim/Region/ClientStack/LindenUDP/LLPacketHandler.cs
index d4377ad6e6..c020b38846 100644
--- a/OpenSim/Region/ClientStack/LindenUDP/LLPacketHandler.cs
+++ b/OpenSim/Region/ClientStack/LindenUDP/LLPacketHandler.cs
@@ -311,7 +311,7 @@ namespace OpenSim.Region.ClientStack.LindenUDP
 
                     // Packets this old get resent
                     //
-                    if ((now - data.TickCount) > m_ResendTimeout && data.Sequence != 0)
+                    if ((now - data.TickCount) > m_ResendTimeout && data.Sequence != 0 && !m_PacketQueue.Contains(data.Sequence))
                     {
                         if (resent < 20)
                         {
diff --git a/OpenSim/Region/ClientStack/LindenUDP/LLPacketQueue.cs b/OpenSim/Region/ClientStack/LindenUDP/LLPacketQueue.cs
index 46d56103dc..5ed92fe7a3 100644
--- a/OpenSim/Region/ClientStack/LindenUDP/LLPacketQueue.cs
+++ b/OpenSim/Region/ClientStack/LindenUDP/LLPacketQueue.cs
@@ -251,6 +251,11 @@ namespace OpenSim.Region.ClientStack.LindenUDP
                 ;
         }
 
+        public bool Contains(uint sequence)
+        {
+            return contents.Contains(sequence);
+        }
+
         public void Flush()
         {
             lock (this)