Can log into iCloud on icloud.com but not on my mac book pro The case is that I can login on http://icloud.com with my user and password, but when I try to connect the iCloud with my mac book pro is saying "An unknown error occured":


Here is my system information: 


It was working just 3 days ago.

Now when I log in to my mac everything is just clean, even on Google Chrome all cache and sessions are lost.
Fixed by:


Signing out (tried to login again but nothing)
Reboot from terminal with -l:

sudo -i

reboot -l

Signing in again.


and it worked for me.