Connection failed after 4 retries...

Hello,i really want to play GMod MP…but this happens all the time i didnt play MP for few months

How can i fix this,please…Every time i choose a server and i want to click to see player list…its blank all the time…and when i try to join any server it says “Connection failed after 4 retries”…I am very sorry if my english is bad…And please reply fast!


[editline]10th May 2014[/editline]

ANY HELP??!?!?!?!