Unable to connect to Azure AD connect

Question

Unable to connect to Azure AD connect

lalajee 1,821

Hi, When I open Azure AD connect and try to click on customize sync option and enter my global admin user name and password I get below error

Unable to validate credentials due to an unexpected error. Restart Azure AD Connect with the InteractiveAuth option to further diagnose this issue. () Learn more.

When I using following command C:\Program Files\Microsoft Azure Active Directory Connect>AzureADConnect.exe /InteractiveAuth

I get this error

I have global admin rights in azure ad, we do have adfs server which auth users

Julien HARDY 35 Reputation points

2024-09-11T14:20:56.0466667+00:00

Hi,

I have a problem with the Azure AD Connect,When installing the AD, in particular when connecting to the AD with our 365 account

I get the following error message. Have you encountered this problem before?
Kris Petrov 1 Reputation point

2025-04-29T16:43:50.7533333+00:00

Just look above. The issue is about enabling TLS 1.2 (1) and then rerunning the AAD Connect / Entra Connect wizard again with the below command via elavated CMD or powershell (2).
c:\Program Files\Microsoft Azure Active Directory Connect tabbed to the executable .\AzureADConnect.ext /interactiveauth

3 answers

Your answer

Julien HARDY 35 Reputation points

2024-09-11T14:20:56.0466667+00:00

Hi,

I have a problem with the Azure AD Connect,When installing the AD, in particular when connecting to the AD with our 365 account

I get the following error message. Have you encountered this problem before?
Kris Petrov 1 Reputation point

2025-04-29T16:43:50.7533333+00:00

Just look above. The issue is about enabling TLS 1.2 (1) and then rerunning the AAD Connect / Entra Connect wizard again with the below command via elavated CMD or powershell (2).
c:\Program Files\Microsoft Azure Active Directory Connect tabbed to the executable .\AzureADConnect.ext /interactiveauth

Answer 1

Michael Anthony Blanco 10

@julien Hardy
we ran into the same issue today.
we first ran the powershell script (as admin) https://learn.microsoft.com/en-us/entra/identity/hybrid/connect/reference-connect-tls-enforcement#powershell-script-to-check-tls-12

then we ran via powershell as admin
c:\Program Files\Microsoft Azure Active Directory Connect tabbed to the executable
.\AzureADConnect.ext /interactiveauth

Hope that helps? we are now waiting for it to fully sync over, but we overcame the issue you had

User's image

Julien HARDY 35 Reputation points

2024-09-12T07:26:33.3533333+00:00

I had also seen this powershell cmd but it didn't do anything, when I reconnected, the error message was still there,

It seems to be coming from the firewall, so I'll look into it.
Julien HARDY 35 Reputation points

2024-09-12T12:16:55.81+00:00

I did some research, I found this Microsoft doc : run Invoke-WebRequest -Uri https://adminwebservice.microsoftonline.com/ProvisioningService.svc

but it gives me the same result in powershell on the server, on the other hand on my session everything is OK (simple windows session) on the firewall side it seems OK,

I'm a bit lost
Albert Milià 1 Reputation point

2024-10-06T11:18:25.27+00:00

Thanks @Michael Anthony Blanco

I had this problem today with a Server 2016 and a Server 2022 and I've solved thanks to your instructions.

Indeed, the problem is that TLS 1.2 is not enabled by default and must be activated using PowerShell scripts.

Answer 2

Julien HARDY 35

I've solved the problem, it was due to TLS 1.2

Albert Milià 1 Reputation point

2024-10-06T11:21:11.9533333+00:00

Me too, Thanks.
Albert Milià 1 Reputation point

2024-10-06T11:24:20.6666667+00:00

I have also been able to solve the same problem. Thanks.

Answer 3

Carlos Solís Salazar 18,191 MVP Volunteer Moderator

Hi @lalajee

Thank you for asking this question on the **Microsoft Q&A Platform. **

First, you must ensure that the user from your Azure AD has the correct password and that the user cannot have the MFA active.

Also, I recommend you try a fresh installation of Azure AD Connect.

Let me know how it goes...

Hope this helps,
Carlos Solís Salazar

----------

Accept Answer and Upvote, if any of the above helped, this thread can help others in the community looking for remediation for similar issues.
NOTE: To answer you as quickly as possible, please mention me in your reply.

lalajee 1,821 Reputation points

2022-06-13T14:55:45.433+00:00

My Account doesnt have MFA. Do I need any other rights to connect to azure ad.

Azure ad is already install/configure more then 2 years now
Carlos Solís Salazar 18,191 Reputation points MVP Volunteer Moderator

2022-06-14T15:58:50.76+00:00

Hi @lalajee

What version of your Azure AD Connect do you have?

NOTE: To answer you as quickly as possible, please mention me in your reply.
lalajee 1,821 Reputation points

2022-06-15T12:00:49.967+00:00

@Carlos Solís Salazar
Carlos Solís Salazar 18,191 Reputation points MVP Volunteer Moderator

2022-06-17T19:11:01.587+00:00

Hi @lalajee

Can you update your Azure AD connect to 2.x version?

You can download it here https://www.microsoft.com/en-us/download/details.aspx?id=47594
Carlos Solís Salazar 18,191 Reputation points MVP Volunteer Moderator

2022-06-27T12:14:06.583+00:00

Hi @lalajee

Making the update of your Azure AD Connect did it work?

you can Accept Answer(https://learn.microsoft.com/en-us/answers/support/accepted-answers) and Upvote, if the above response helped answer your query, others visiting the forum with the same query might get help.
NOTE: To answer you as quickly as possible, please mention me in your reply.
Kassim, Helmi 0 Reputation points

2023-10-13T02:58:22.7633333+00:00

Ver 2.xx requires Win 2016 or higher to even install. Any other solutions?
Kassim, Helmi 0 Reputation points

2023-10-13T22:46:30.68+00:00

Does anyone have a proven solution for this? Carlos is just guessing and sounds he does not know the issue or encountered it himself.

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Unable to connect to Azure AD connect

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