Outlook 2016 doesn't accept password or app password

Mine has had no prompts for 2 days. I was just testing some stuff on my wifi network with my phone, switched between several SSIDs, mobile network, disconnected and reconnected my home internet, etc. Then I did get a prompt, but I tapped it, and it went away and is working fine (where before it would immediately say check your credentials, and I'd have to bounce internet on the phone to get it to work).

So still not quite how it was before, in the past it never brought up anything like that even when I did similar testing etc. But at least now it is accepting the credentials right away (message probably would have gone away on its own).

I wish Gmail android would support modern auth for exchange and not just IMAP. Don't really feel like using the outlook client. Guess we'll see if they ever get it all sorted out and clean. At some point we'll all have to use modern auth and 2FA so if Gmail doesn't get with the program (Samsung's email client works fine with it) may have to switch to the outlook app. I use it for my work profile and it is just too bloated and clunky to use for personal email. Maybe the "lite" version is better.

It seems to be more stable but not fixed yet. Had a connection at work today in the WLAN there but when switching to mobile network I got a password prompt.

It was persistent also in my home WLAN after I arrived at home, but now automatically switched to work again.

Second day without problems here, using office outlook 2013 and two exchange accounts (one with 2FA / app passwd and one without).

Fingers crossed

It suddenly startetd to work. Hopefully it is persistent...