Can't remotely control Ubuntu 20 after a reboot until I log in on the physical server

It shows the computer as online after a remote restart, but then I still cannot connect (just fails with no error message) until I log in locally.  After that I can connect remotely and everything works fine.  The target computer is running Ubuntu 20.04 and TeamViewer 15 (start with system is checked).

Old posts regarding Ubuntu 18 had a workaround (here) and (here) but it does not work on Ubuntu 20.

Thanks

IT & Cyber Security consultant
Gaming Industry analyst

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