when i load tf2, i cant see any servers on the internet tab, ever, no matter the settings. the game is obviously not being blocked by my firewall, cause i can join a friend in game with no problems. its kind of annoying cause i wanted to try out the highlander mode, but cant search for a server
1. Try deleting masterserver.vdf and restarting steam/tf2.
If that doesn't work a bunch of people on the steam forums are saying the issue seemed to fix itself when they installed halflife 2 (if you own it) but others are saying just going into any other valve/source game and connecting to a server should fix it for tf2 as well.
http://forums.steampowered.com/forums/showthread.php?t=1115862