diff --git a/Lidgren.Network/NetConnection.cs b/Lidgren.Network/NetConnection.cs
index e314b70..d634671 100644
--- a/Lidgren.Network/NetConnection.cs
+++ b/Lidgren.Network/NetConnection.cs
@@ -234,8 +234,11 @@ namespace Lidgren.Network
 				{
 					//m_peer.LogVerbose("Received ack for " + acktp + "#" + seqNr);
 					NetSenderChannelBase chan = m_sendChannels[(int)incAck.Item1 - 1];
+
+					// If we haven't sent a message on this channel there is no reason to ack it
 					if (chan == null)
-						chan = CreateSenderChannel(incAck.Item1);
+						continue;
+
 					chan.ReceiveAcknowledge(now, incAck.Item2);
 				}
 			}
diff --git a/Lidgren.Network/NetReliableSenderChannel.cs b/Lidgren.Network/NetReliableSenderChannel.cs
index ade2e9d..7fe4d6c 100644
--- a/Lidgren.Network/NetReliableSenderChannel.cs
+++ b/Lidgren.Network/NetReliableSenderChannel.cs
@@ -138,8 +138,7 @@ namespace Lidgren.Network
 			if (storedMessage != null)
 			{
 #endif
-			Interlocked.Decrement(ref storedMessage.m_recyclingCount);
-			if (storedMessage.m_recyclingCount <= 0)
+			if (Interlocked.Decrement(ref storedMessage.m_recyclingCount) <= 0)
 				m_connection.m_peer.Recycle(storedMessage);
 
 #if !DEBUG