I can not play counter-strike online

[76561198039138599]

Help I have a problem when I try to play counter-strike did not appear to me a few many servers appear and when I click on one of those few servers do not respond as if no internet to play and when I go out and use the internet does not work me well as if there were but if there is and it works when I try again and if I could get to play I would do the same to get out of the game and want to know if my pc if you need formatting because I did a cleanup to solve problems Windows or my internet gambling is not because I have another with the same the same thing happens to me I can not go to play online because few servers appears and when I enter I get an error as if my internet was not failed before so if my internet can tell me how can I fix it