Same here .
Suddenly have this happened .
It will refresh automatically even when I typing the login id and password , I did tired to type fast to log in , but after login , it will keep refresh and refresh until I quit Lightroom .
I did try to delete my Lightroom WEB catalog but still the same , I did uninstall twice Lightroom even creative cloud apps on my MAC.
Can please help .
Can't login to my mobile account!
Help! 2 weeks now
I have the same issue on my Mac. Any solution yet ?
What version of Lightroom are you using ?
Lightroom does not support sync functionalities if the version is less than CC2015.5 or 6.5 (It can be 2015.5, but not less than it for sync to work)
Please check this and let me know.
Mine seems to have fixed itself and is working fine now
I can't seem to get mine to sync either. Using Mac 10.12.5 and desktop Windows 7 Professional