Garry's Mod Server List Is Blank

Ever since yesterday, (since newest update), garry’s mod has been a complete bitch and not letting me join or search for any servers. I’ve tried just about everything, restarting my computer, restarting steam, uninstalling gmod, uninstalling steam, deleting the steam folder, reinstalling steam, uninstalling any junk from my computer that might be a virus, putting down the firewall, port forwarding gmod, restarting the router, and making my steam beta version, (as I saw would might help on another facepunch thread). The wierdest thing is that TF2, CSS, and any other multiplayer valve and non-valve game works completely fine. This is the wierdest thing that has ever happened to my computer, and I need urgent help.

(User was banned for this post ("wrong section/don't sign your posts" - postal))