Hello, I am currently have issues during installation of Azure AD connect on a windows server 2022 VM. During the configure portion of the installation I receive "An error occurred executing Configure AAD Sync task: An error occurred while sending the request." I am currently at loss of how to proceed at this moment. Logs Attached trace-20240723-080806.log

Hello Richard Curran , Thanks for your question. This is likely as a result of TLS 1.2 not being selected and used by Connect. Run the script below to enforce this: https://learn.microsoft.com/en-us/entra/identity/hybrid/connect/reference-connect-tls-enforcement#powershell-script-to-enable-tls-12 The above should fix the issue. A lesser possibility is if you have a proxy. In that case see: https://learn.microsoft.com/en-us/entra/identity/hybrid/connect/tshoot-connect-connectivity#connectivity-issues-in-the-installation-wizard You can mark it 'Accept Answer' and 'Upvote' if this helped you Regards, Abiola

How to correct error executing Configure AAD Sync task

Accepted answer

akinbade abiola 18,290 Reputation points

2024-07-23T18:41:14.05+00:00

Hello Richard Curran,

Thanks for your question.

This is likely as a result of TLS 1.2 not being selected and used by Connect. Run the script below to enforce this:

https://learn.microsoft.com/en-us/entra/identity/hybrid/connect/reference-connect-tls-enforcement#powershell-script-to-enable-tls-12

The above should fix the issue.

A lesser possibility is if you have a proxy. In that case see: https://learn.microsoft.com/en-us/entra/identity/hybrid/connect/tshoot-connect-connectivity#connectivity-issues-in-the-installation-wizard

You can mark it 'Accept Answer' and 'Upvote' if this helped you

Regards,

Abiola
Please sign in to rate this answer.

2 people found this answer helpful.
Richard Curran 20 Reputation points

2024-07-25T03:58:26.72+00:00

Thank you for the assistance. Connect not selecting and using TLS 1.2 was the issue and the script solved the issue.

Vincent Uzoechina 0 Reputation points

2024-09-16T19:04:43.9733333+00:00

Thanks a lot, this solved my issue as well. I had decommissioned and old server VM and installed AD Sync tool on a new VM and then ran into trouble. I spent hours trying to figure out what was wrong and just happened to stumble upon this.

Aisha Jackson 0 Reputation points

2024-09-17T17:13:33.9166667+00:00

This solved the error for me as well - I had the following appearing in event viewer:

Authenticate-MSAL: exception details: System.Net.Http.HttpRequestException: An error occurred while sending the request. ---> System.Net.WebException: The underlying connection was closed: An unexpected error occurred on a send. ---> System.IO.IOException: Unable to read data from the transport connection: An existing connection was forcibly closed by the remote host. ---> System.Net.Sockets.SocketException: An existing connection was forcibly closed by the remote host
Sign in to comment

Use comments to ask for clarification, additional information, or improvements to the question.

Share via

How to correct error executing Configure AAD Sync task

0 additional answers

Your answer