You've been signed out

I have recently formatted my HD and started a clean install of Windows 7 64bit.

A couple of days ago I installed CC logged in and installed Acrobat Pro with no problems. This morning I need Photoshop so I tried to login to CC and it told me an update was available and it wouldn't let me continue without installing it. So I installed it and restarted my PC. Then when I started CC it asked login details again  as soon as I enter them I get "You've been signed out". I have tried at leaset 10 more times. Still I can't get logged in. I have tried changing my password though my account on the adobe website but no joy with new password either. I have uninstalled Acrobat & Creative cloud manager deleting relative folders from Appdata and reistalled but still I get "You've been signed out".

Does anyone have any ideas how I can get logged in ?.... deadlines are pressing and I am running out of patience not being able to use software I rely on.

Thanks in advance

Greg