sign in loop

[mughal10]

i've just installed the creative cloud but everytime I try opening one of the apps such as photoshop it asks me to sign in after i have signed in it just pops ups again i've looked at what the community has said and it doesnt help i've re-installed them all but still the same thing happens 

[John T Smith]

Sign Out When Sign In https://community.adobe.com/t5/Get-Started/sign-in-help/td-p/6071780
-and http://helpx.adobe.com/creative-cloud/kb/unable-login-creative-cloud-248.html
-and 'looping' https://community.adobe.com/t5/Get-Started/Re-quot-Sign-in-Required-quot-Loop/td-p/6257463