[Ferguson]

I've got my 7100t working on t-mobile. I can ping, http and https. I also got my laptop to connect via ssh. no problems, if a bit slow.

However, I cannot get either PPTP or L2TP to run over it. In both cases they time out.

Which either means it timed out, or ports are blocked. I tried looking at a sniffer trace but I do not know the protocols well enough to interpret.

Has anyone gotten PPTP or L2TP to work over T-Mobile?

[Ferguson]

Let me answer part of my own question -- after numerous tries in different areas, I got it to work briefly via L2TP.

This says to me that the issues are performance related, that the TMO network is just too darn slow, and not port-blocking. Though PPTP never has worked yet.

I would be curious if anyone else had success.

[Mark Rejhon]

It's possible that the latencies involved are causing some timeouts.

Maybe there's a registry tweak, that increases the timeout period for packets?