Server does not seem to send connected status to client

[Kronos87]

Hello, I got a weired bug. If I connect to the server and the client gets an exception for what reason ever, the server will disconnect him. After starting that client ones more, and connecting to the server again, the server recognizes the client, but the client gets no answer....
The exception is for testing reasons in the OnReceive method at the client. Why is the server irritated after having a exception at the client side? I hope you understand my problem. :)