I connect to the Internet through a wireless router, this way we have already played with another friend the two of us on existing servers. 3 computers, all connected to the same router. If the Internet connection works, then we could play...
As for the hosting issue, I don't know. The server is visible in the list of servers, when I click on it on the other computer it seems to join, but eventually says that no guest info received / timed out or something similar...
Not sure, as I have also opened the ports required on the router.
I am working on it to try to find the problem, but I am not an IT guru and I thought there are so many empty provate servers out there, someone might help...
Especially as it is for just the one night...
Thanks!