Board Thread:Questions and Answers/@comment-26018121-20150118044336/@comment-2233791-20150125083033

I had a similar problem thta the game had to update all the files everytime I wanted to play. The CS also prompted the firewall to turn it off as a solution. A full reinstall of the game worked.

Everytime you play the game, the game has to check some files (about 30) to check if your game client files are ok.