diff --git a/src/main/java/org/spacehq/packetlib/tcp/TcpSession.java b/src/main/java/org/spacehq/packetlib/tcp/TcpSession.java
index cc74912f..30dfeef9 100644
--- a/src/main/java/org/spacehq/packetlib/tcp/TcpSession.java
+++ b/src/main/java/org/spacehq/packetlib/tcp/TcpSession.java
@@ -352,7 +352,7 @@ public abstract class TcpSession extends SimpleChannelInboundHandler<Packet> imp
         } else if(cause instanceof WriteTimeoutException) {
             message = "Write timed out.";
         } else {
-            message = "Internal network exception.";
+            message = cause.toString();
         }
 
         this.disconnect(message, cause);