Solve Data From Active Directory Users And A Computer Is Not Available Connections.

Asked By Carol K Simons 10 points N/A Posted on - 04/15/2017

when I open AUDC, then I receive the following error “data from active directory users and a computer is not available.” Choose proper domain controller by selecting connect to a domain controller. How to solve it?

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• Question Category: Active Directory
• Question Tags: Active Directory | Computer

Answered By Lawrence E Manning 10 points N/A #294460

Solve Data From Active Directory Users And A Computer Is Not Available Connections.

Port 389 is used for LDAP connections. If TCP/IP filtering is configuring incorrectly, then port 389 will be blocked. By default TCP/IP support all settings but remove that error, we check all settings.

1. On domain controller right click my network place on which you cannot start ADUC and then click properties.
2. Click Internet protocol -> properties.

3. Click Advanced -> options.
4. Go to and click TCP/IP filtering and then click properties.
5. For the port setting, click to permit all.
6. Now, restart your computer.
7. I hope this process will help you.

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• Posted on - 04/15/2017
• Question Category: Active Directory