from the Windows 20-04 compability issue list:
Errors or unexpected restarts for some devices using Always On, Always Connected
Some devices using the Always On, Always Connected feature might have compatibility issues with Windows 10, version 2004 (the Windows 10 May 2020 Update). Affected devices will have more than one Always On,
Always Connected capable network adapter, such as the Microsoft Surface Pro 7 and Microsoft Surface Laptop 3, and might receive errors or unexpected shutdown or restart.
To safeguard your update experience, we have applied a compatibility hold on Windows 10 devices with affected drivers or firmware from being offered Windows 10, version 2004.
Affected platforms:
- Client: Windows 10, version 2004
Next steps: We are working on a resolution and estimate a solution will be available in mid-June.
NoteWe recommend that you do not attempt to manually update using the Update now button or the Media Creation Tool until this issue has been resolved.