iMac can't sign in to Apple ID
My iMac can't sign in to iCloud or AppleID. I can sign in if I open a browser, but from the system preferences it won't. When I try I get a verification failed. When going through the App store and it asks for the log in it can't verify again. I know it's the correct user and password, I'm logged in on the browser with it now.
iMac 27″, OS X 10.11