Gmod won't show servers in-game?

I’m trying to figure out what’s wrong with my Gmod servers list. I go to “Play Multiplayer” and try to look for servers, but there’s nothing. I can’t see anything and all filters are turned off and simple mode is off. I can only view servers from Steam.

I’ve validated the game cache, and tried making a copy called garrysmod_old in my steamapps folder as I’ve read. However, the problem still persists. Should I reinstall?