Originally Posted by
Mike
GunZ TCP socket errors are weird (and rare). This means you cannot connect peer2peer (P2P) and something is blocking you from connecting to our matchagent (NAT).
I would have you look into is seeing if you have ANY programs running on the ports 7700-7800 if so, try closing them that should help as something may be intercepting your packets on the return message. This also makes sense because you can connect to the server (port 6000)
In simple terms: close any background programs that may be connected to the internet.
After that check your firewalls, router firewall (any special TCP rules) and or simply trying to restart your router.