Can't connect to Official, Community, or Modded Servers.

Okay, so I am still not able to log into any of the servers in my history due to this Steam authentication problem, but also I am not able to log into servers NOT in my history at all. No authentication error, simply when I double click on the server it doesn’t even attempt to connect me to it. Nothing at all happens. I can use the servers in my History and they open fine (aside from the authentication error now because the admins haven’t reset the servers) but for the past couple days the History server list is the only one I can use to log into a server. Anyone else having this issue?