As an aside, something that got lost in my post since I was diddling with my router and lost what I had originally typed up; When I try to host, it tells me "Failed to determine external IP address."

My External IP address is static, though.. And, again, all of this was working fine yesterday. I ...

Been playing with my buddy back home for the past few days, no issue. Today, I host, and he can't connect to me. So, I have him try to connect to other servers; works fine. I can't connect to anything, though!

Trolled through all posts about it, but I keep getting "Couldn't establish network ...