IP "Tunnel"

[Neiv]

Quite a while back I was having trouble connecting to the Internet after having installed the PEQ DB and having played it for a while. After doing some troubleshooting with ipconfig, I noticed the presence of a "tunnel" that I did not recognize. I disabled it, and retrieved connectivity again. However, it disabled my son's ability to connect to my server although he was able to connect to others on the server selection screen. Now my server name shows up on the server selection screen, but no one can access it but me. What is this "tunnel" and how do I turn it back on?

[AndMetal]

Sounds like a VPN (http://en.wikipedia.org/wiki/Virtual_private_network) (Hamachi (http://en.wikipedia.org/wiki/Hamachi) maybe?)

[Neiv]

That name doesn't sound familiar. Is something like that needed for the public login? If someone with a public server could verify whether ipconfig /all reveals a "tunnel" on your machine, I'd be grateful. I'm just trying to figure out why no one can logon to my server even though it shows up on the login window.