Hello Michael H. M. Bowen,
Thanks for reaching out to Microsoft Community. I apologize for the inconvenience this has caused you.
As much as I'd like to help, but since you have a device for business, it would be best raising this issue to our commercial support team. Please submit a support request via Support for business (microsoft.com) to get your device diagnosed and get insights from the experts who handle commercial devices.
I hope this helps.
Best regards,
StevenK