One of our employees uses a laptop to connect to a server via Sonicwall VPN and remote desktop. Many people use this same setup successfully, however, this user gets disconnected from the RD frequently, but only from home. I tested it at another location, it's fine, he tested it at an open internet access site, it was fine; it was only at home (he's on DSL) where this happens. I thought it may be norton internet security blocking it but (a) it doesn't do it when he logs in from any other site, and (b) he can connect via RD, it just keeps dropping him, but not dropping the vpn or any other connection.
Nothing on the server end indicates that there is a problem, as many others can connect to the same server and stay connected.