Well i can officially say i am clueless same problem still, it seems when i join a coop room that my other pc made and we crash(by killing eachother after loading a save for some reason???) we can join a tastey map other wise it will not show up in games list or kick the other player.Also on a side note whenever i try to change player model in player options, it crashes? i added the player pack and texture pack and stuff now it duz that n e 1 know a fix? or what i did wrong i just extracted all-env.zip all-maps.zip all-players.zip all-sound.zip all-textures.zip into my Q2 folder.
, it doesnt really crash, it just freezes for 10 to 20 seconds and then i can acces the player models .