Hi @Dr Alise B Thank you for posting your question on Microsoft Q&A and for using Azure Services.
My understanding is that the option authentication type is grey out and you are getting an error message after entering the ad username and password.
- The authentication type is grey out because you are not set as admin. Could you please go to the server's name under settings then go to Azure active directory and set your Azure Active directory name.
Please let me know the result
Regards,
Oury