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CC seems to have a bug which affects opening

Oct 23, 2017
Lightroom Experience
Lightroom Version
Operating System: Windows 10

Lightroom Version: Photographers Plan
(Please go to Help menu > System Info to double check the exact version number)

Question or Description of Problem: Having downloaded CC I hit a problem every time I try to open in. I receive the error message shown in screenshot below. This message is incorrect as I have signed into the other programs in the package successfully. Contacted Adobe Help by chat. Totally useless. After over an hour and being shuttled between 2 people they gave up. Is this a known bug and how do I resolve this?


  • Lightroom CC screen shot.png
    Lightroom CC screen shot.png
    91.5 KB · Views: 244
Sep 29, 2007
Isle of Wight, UK
Lightroom Experience
Power User
Lightroom Version
Cloud Service
A long shot, but you’re not behind a proxy or something?

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Senior Member
Sep 23, 2014
Waltham MA
Lightroom Experience
Lightroom Version
Another possible option is a firewall which blocks it.
Some AV vendors have gone to per application filtering and by default block all outbound communication. There could also be a firewall blocking it too.