microsoft outlook not working

Is the Mail app working?

• If the Mail app is working then the problem is isolated to Microsoft, in which case you should contact them for support: Contact a third-party vendor - Apple Support.
• If the Mail app is not working read Troubleshoot email problems in Mail on Mac - Apple Support.

running Catalina 10.15.3 and Outlook 16.16.18 (200112) on an iMac (Retina 5K, 27-inch, 2017) over ethernet with MS Exchange account.

I get an error requiring entering my password EVERY TIME it starts. Mail app works fine

Entering the password doesn't fix it.

Logging out and back in does not fix it.

Rebooting doesn't fix it.

I found that quitting Outlook, going to network preferences and making my ethernet Inactive/Apply....making Ethernet Active/Apply.... Restarting Outlook. Fixes the problem.