By Evan Reiter 1314720
#525946 Apologies if you've already looked at this, but are you sure your voice server is correct, with no typos? I've seen that error message before on the ATC clients when I have a typo or incorrect voice server entered.

You might also try the usual port forwarding trick, if you haven't already:
http://www1.metacraft.com/VRC/docs/doc. ... rading_vrc