Im having some trouble getting connected to all the servers in tf2 and beta. In TF2, right after i get connected to any server I go to it lags really bad and 2 - 3 minutes later i get disconnected. I tried to find out what the problem is but I couldn't find anything. In TF2 Beta, on the master list there's like 2 servers that i tried getting on but i keep getting this message that says "Connection failed after 4 retries." I have no idea what it means, plus I'm also trying to figure out where the rest of the servers are i searched everything but I still keep getting the 2 same servers on my master list. I tried everything, updated everything, restarting stuff but it still won't let me connect through any servers. I don't know what needs to be done to get it to work.