Servers blank

Had gmod for a few days now, just started playing a few minutes ago.. when I click multiplayer, the box is just a blank white screen, same with legacy browser, googled it and saw thousands of other people getting that problem. But, I figured MPGH users would know the best/easiest fix. Any suggestions?

6 hours later, still dealing with the problem.

If you have a firewall, turning that off might fix it dude