just the same problem as yours. looking for the solution

I'm now in Germany. And the ping is good(about 12s) with the servers which I wanna join. Is it possible that it has something to do with the ports of the network? I have allowed LFS in firewall. I dont know if I should open some ports to get the guest info.

When I wanna join any of the servers(S2 Demo), there is always a messege"Did not receive guest info. Lost connection to the host". How can it be solved? 3x!!