Here is the error I'm getting. I have a simple .Net Remoting setup. This error comes up after a few minutes of the connection being idle.
Object '/7966b546_734e_410d_817a_a0e701f114f6/lfxehvbcznjzkycgbimraglb_1.rem' has been disconnected or does not exist at the server.
You may have a timeout. You can use the native interfaces to set timeout or you can override virtual object InitializeLifetimeService()
If it's not a timeout issue, it may be that you had an error on the server-side. Try attaching your debugger to your server component and play with breakpoints and stepping, esp. in the constructor.