I have MacBook Air (13-inch, Late 2010)
10.11 Beta (15A215h)
I just updated to El Capitan. and when I finished updating,
icloud says I need to put my password again in order to use my icloud account.
So I filled my password. however, it does not log in, spinning gear keeps spinning and when it's done, it says
'unknown error occurred'
I tried many times and I just cannot log in,
I thought maybe next update can fix this problem. so I checked for an update on Appstore account.
And I can not log in to my AppStore. it says the same thing. 'unknown error occurred'.
How can I fix this problem?
I tried logging out and log in again but it does not work either