Forum Discussion
Outlook keeps asking for password
- Ok so now I tried the same registry settings on a computer with Office 2016 and IT WORKS!
Oh course I had to change for version 16 in the registry.
HKEY_CURRENT_USER\Software\Microsoft\Exchange\AlwaysUseMSOAuthForAutoDiscover REG_DWORD 1
HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\Common\Identity\EnableADAL REG_DWORD 1
HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\Common\Identity\Version REG_DWORD 1
Make sure that modern authentication is enabled on the tenant:
Microsoft 365 admin center > Settings > Org Settings > Modern Authentication.
If the key HKCU\SOFTWARE\Microsoft\Office\15.0\Common\Identity\EnableADAL exists than the DWORD has to be set to 1 (https://learn.microsoft.com/en-us/exchange/troubleshoot/administration/modern-authentication-configuration)
If these solutions don't work, try to create a new Windows user profile.
MathieuVandenHautte life-saver! I'd found this registry entry but the page I'd found said it had to be set to 0 not 1 - doh! Not sure WHY this key hasn't made it into some of my client's computers. Caused all sorts of hassle today as basic authentication was disabled.
- Modern Auth is enabled ever since our tenant goes live.
EnableADAL does not exist i created it still does not work. instead of 15.0 i use 16.0
sorry but creating a new user profile is not the best solution for our case, we have 7 users out of 86 and some of this users are 4 hours away from our office. we are on 3 different sites. Yeah, I've done all of them. Not your fault I know, this is my MS rant bit .... I just don't understand that when it happens to multiple users at the same time why recreate the profile is an MS solution. Something has obviously changed in MS otherwise it would only be a 1 user isolated incident, corrupt profile etc .... very frustrating .....
- Microsoft disabled basic authentication for most tenants over the past few weeks. They have warned us about this for ages BUT have always said that Office had been updated to use modern authentication for years. So clearly we didn't worry about it. But this bug has caught many people out. There is an Azure report you can run to determine which uses are still using basic authentication with Outlook.
mprcel I have the same problem. I have limited it to one problem or two problems. So same user same computer on domain gets Microsoft security password endless cycle. Login to same computer as a local admin not on domain and it loads fine. Can not remove mail profile due to endless cycle of password. Could be something to do with Microsoft security and credential manager.
- Hey Rd, similar issue here. On the affected users laprop, I logged in as the admin and tried to load up the users profile into outlook and the password prompt still kept appearing. Logged into another domain users laptop as the affected user and no problems at all. Something changed (or updated) since Tuesday that affected us but I honestly believe that it's a machine issue now - something that has affected either registry or file corruption maybe. It's just such a waste of time - uninstalling fully, clearing out all related reg keys to get back to scratch, loading it back on only to face the same problem again. The fact that even under a diff profile on the same machine has the same issue .... there has to be something somewhere ......
