Hi
I created a managed domain in Azure using a custom domain, let's say aaddscontoso.com. My default domain in Azure AD is contoso.com. After a lot of trouble I was able to join an Azure VM to the managed domain. At first my users got locked out when trying to join the machine. Finally I used the pre-Windows 2000 format to be able to join the VM (as I didn't know if I had to use the suffix @contoso.com or @aaddscontoso.com
I was able to join the VM but now I am not able to log in via RDP with a domain account. If I log in using a local account I am able to authenticate to the domain, for instance using "Run as another user" to open an mmc or searching the domain from the computer management console when adding a domain user to a local group.
Finally I was able to see the users from ADUC and I see they have the UPN suffix @contoso.com. But still I cannot log in using a domain account via RDP.
Any clue?