[Soapyfrog]

I think its the connection hiccuping. I have this problem occur occasionally myself, in the evenings. I think it is the cable provider (Videotron) that is at fault...

Since the server is in my home and uses that connection, that could explain why sometimes you are disconnected.

I am not sure why you have continued problems though. For me it is a one time thing, I reconnect and I am ok.