With my connection, I noticed that the circuit would disconnect and reconnect periodically. It corresponded to the timeout in my firewall causing the UDP association to be lost. When I increased the timeout in my firewall for these port 700 UDP "connections", that made my circuit much more stable. Unfortunately, my firewall (a SonicWALL NSA 240) is also stupid in that it *must* randomize the source port for outgoing packets, so I'm not able to connect to HECnet because MultiNet insists that the source port must also be 700 and mine are coming through with random port numbers. When I worked with them, I found that you could always rely on a firewall to mess something up somewhere :-( Right now, I've got no firewall (although I do have NAT in my DSL router) and I can get everything I want to work correctly with one small exception. I never got that close when there was a firewall in the way! I have a Multinet link and I ocassionally see the "Unexpected packet type" error. However, I've had only 26 of them since November last year. If others are seeing far more of these errors and are also running firewalls, I would suggest looking closely at what their firewalls are up to. Regards. Peter Coghlan.