Remoting events inconsistent

I have implemented .NET remoting in a kind of chat style application.
Messages need to pass from a server to clients. I currently have this
implemented and works find for the most part.

If I put my laptop to sleep, then come back on line, start my app cleanly I
do not receive events with the messages. I've restarted the server piece and
my client app but the only thing that seems to work is completly restarting
my laptop.

Has anyone run into a similar problem?

~ Steve