Users can create accounts but cannot sign in to Adobe Acrobat 2020 stand-alone
Migrating from 2017 to 2020, we noted that our (non-cloud) instances of Acrobat require users to create accounts. None of my userse currently have an Adobe account.
When we launch Acrobat 2020 for the first time there is a prompt that allows us to create new accounts. We go through this process and it appears as if accounts are created successfully, but Acrobat 2020 itself will not allow us to sign in. When given (correct) credentials, the prompt just goes white and ultimately sends us back to the "Sign in" panel that pre-empts where you can actually submit credentials.
I tried to get users to log into the Adobe website with the accounts that were just created, and this does work - the user we tested this on was able to sign in over at Adobe's website, but the Acrobat software itself does not appear to sign in successfully. Best we get is the software apparently accepting the Username on page 1 (even loading the randomly generated avatar thing correctly) but then not doing anything useful when provided with the password on page 2.
This seems to have been an issue for some, but none of these troubleshooting steps seem to work:
https://helpx.adobe.com/download-install/kb/acrobat-repeatedly-prompts-for-sign-in.html
https://community.adobe.com/t5/acrobat-discussions/acrobat-keeps-asking-to-sign-in/td-p/11525698
There's no creative cloud software, we can't launch Acrobat to update it (as it requires a sign in), network settings are correct, and I even turned off our HBSS software to see if that was maybe blocking something - no effect.
We also checked the user's account on the website and it does not appear to list any registered devices, so it doesn't seem like the account has "found out" about this instance of Adobe 2020 yet either.
Has anyone else successfully gotten around this? Is there maybe something on the website that can be set (like giving the license key to the account) that may allow them to bypass the sign in phase?
