couldn't sign into microsoft teams room 4.10.10.0 but calender is synced

TheGrahamWalsh I have the same issue here on a new system. Four others work without issue and the account can sign in to the Teams online system or go to other systems without issue. But no account can get past the Teams login on this one HP system. I did some light reading through the Teams admin logs from the device and found only one error, repeatedly. "- info -- Failed to getHomeUserUpn value with error: Message: Unable to open RegKey: 0x2" It is running Windows 10 20h2 and the 4.10.10.0 release. Looking through Azure, it is able to authenticate with Skype and Exchange but just can't get past the Teams part, which is very frustrating. I have a ticket in with Microsoft as well, but I don't expect a fast response. This system is new, and no accounts have been able to fully get through. All licensing matches the working systems. I even got HP to send a recovery drive and reimaged the system, but it installed Windows 1803, so after confirming 20h2 is supported with 4.10.10.0 I manually updated it. Windows first then using the PS1 from Microsoft to run the app update.