Jun 27 2022
Jun 28 2022
with Azure AD Connect passthrough authentication we see "50126 InvalidUserNameOrPassword" for some users.
In C:\ProgramData\Microsoft\Azure AD Connect Authentication Agent\Trace\AzureADConnectAuthenticationAgent_....
I can see the corresponding error:
"Passthrough Authentication request failed.... Reason: '1326'."
The majority of users authenticates ok in azure.
In the trace Log I see many System.OperationCanceledException
At the AD Domain Controllers I see no "badpassword". I guess at some point Azure AD Connect decides the username is wrong - but there is no differnce in UPN compared to working users.
where can i find a solution?
Jul 02 2022