Index: ps/trunk/source/network/NetSession.h
===================================================================
--- ps/trunk/source/network/NetSession.h
+++ ps/trunk/source/network/NetSession.h
@@ -126,6 +126,9 @@
 	// Net messages to send on the next flush() call.
 	boost::lockfree::queue<ENetPacket*> m_OutgoingMessages;
 
+	// Last know state. If false, flushing errors are silenced.
+	bool m_Connected = false;
+
 	// Wrapper around enet stats - those are atomic as the code is lock-free.
 	std::atomic<u32> m_LastReceivedTime;
 	std::atomic<u32> m_MeanRTT;
Index: ps/trunk/source/network/NetSession.cpp
===================================================================
--- ps/trunk/source/network/NetSession.cpp
+++ ps/trunk/source/network/NetSession.cpp
@@ -139,6 +139,7 @@
 		char hostname[256] = "(error)";
 		enet_address_get_host_ip(&event.peer->address, hostname, ARRAY_SIZE(hostname));
 		LOGMESSAGE("Net client: Connected to %s:%u", hostname, (unsigned int)event.peer->address.port);
+		m_Connected = true;
 
 		m_IncomingMessages.push(event);
 	}
@@ -148,6 +149,7 @@
 
 		// Report immediately.
 		LOGMESSAGE("Net client: Disconnected");
+		m_Connected = false;
 
 		m_IncomingMessages.push(event);
 	}
@@ -160,7 +162,13 @@
 	ENetPacket* packet;
 	while (m_OutgoingMessages.pop(packet))
 		if (enet_peer_send(m_Server, CNetHost::DEFAULT_CHANNEL, packet) < 0)
-			LOGERROR("NetClient: Failed to send packet to server");
+		{
+			// Report the error, but do so silently if we know we are disconnected.
+			if (m_Connected)
+				LOGERROR("NetClient: Failed to send packet to server");
+			else
+				LOGMESSAGE("NetClient: Failed to send packet to server");
+		}
 
 	enet_host_flush(m_Host);
 }