Credentials Error When Modifying Active Directory on Production Server

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Hi,
I have two servers: a production server and a test server.
On both servers, the option 'Support for modifying objects in Active Directory' is enabled.
Both servers are in the same domain and use the same user account. The SSL connection is active.

On the test database, actions work correctly, and users are added to Active Directory. However, on the production database, I receive an error related to credentials.
The login and password are definitely entered correctly.
I also tried using a different account, but I always get the same error.

What could be the issue in this case?