Login Failed (Allright source by UltraTM)

I am having a error in the login, everytime i try to login it takes 2 min and then shows "Login failed, please try again later".

In the logs i have this messages:

000000.435| Checking for new updater000001.015| Checking for new updater - finished
000065.672| WO_API: http timeout
000065.672| Login FAILED, code: 8
000520.411| Requested to stop, 0 files in queue
000520.411| CUpdater::Stop()

I cant understand anymore, fixed every fucking error in the last 3 days, and the last thing i would expect is a login error.

check iis and app