With a few spare weeks on my timetable, I've been looking to reacquaint myself with my old friend, Left 4 Dead 2, over Steam. Unfortunately, I've been having a few troubles connecting, which include but are not limited to:
- Auto-disconnects soon after joining the server
- Progress bar stopping and staying stopped before loading a level (this usually only happens when starting from the lobby)
- "Steam validation rejected" messages when I try to rejoin a server (the progress bar also goes all of the way up quickly before this happens)
- Black screens when the game should be loading
Occasionally I get into a game, and everything stays fine, but it's a real pain in the ass to have to disconnect from the games and even Steam repeatedly to try and make it work correctly. So far, I've only encountered this error in L4D2, and fingers are crossed that it doesn't manifest itself in other games. I've tried disabling uPNP, forwarding ports on my router, messing around with my firewall, and yet it's being a pain. If anyone could shed some light on the situation, it would be much appreciated. :)
EDIT: some system specs;
OS: Windows 7 Ultimate x64
CPU: AMD Athlon 64 X2 5000+ (2.6Ghz dual core)
RAM: 4GB, DDR2 800
Network adapter: D-Link Wireless G DWA-110 USB Adapter
ISP: Telstra Bigpond
