Active directory users and computers opening Error RRS feed

  • Question

  • Hi,

    I'm trying to open Active Directory Users and Computers from the Server Manager but I've always get the same error, and I can't reach the active directory in my localhost.

    I followed the next link to install LDAP in my WS 2016 ( https://blogs.msdn.microsoft.com/microsoftrservertigerteam/2017/04/10/step-by-step-guide-to-setup-ldaps-on-windows-server/). 

    Then I followed the next link to activate the Active Directory Users and Computers option in my Server Manager (https://www.windows-server-2012-r2.com/how-to-install-active-directory-users-and-computers-in-windows-server-2012.html)

    But when I click in the Tools option "Active Directory Users and Computers"

    I get the next message warning message (note that I'm the admin user)

    Then I click "OK" and I'm supposed to see my active directory information but all I see is this:

    (as you can see there is a red cross and my info is not reacheable)

    What I tried to do is to connect to my directory by just right clicking in Active Directory Users and Computers --> Change domain --> browse, and I get the next error message:

    Unable to browse the domain because: The RPC server is unaviable

    I googled this error and I tried different solutions but didn't solve my problem, there must be something that I'm forgetting.



    I'm quite new dealing with LDAP and the configuration from LDAP with other applications. I'm also new in psoting so if you think I have to edit or complete something let me know. 

    I'm using Windows Server 2016, with IIS installed and I just want to access my Active directory from my own server called "echolima" 

    Tuesday, August 28, 2018 4:48 PM

All replies

  • Hi,

    you can follow the below link for remote administration of  AD Users and computers:



    when trying to access AD Users and computers you should assign certain permission to that user.


    Please remember to mark the replies as answers if they help and unmark them if they provide no help. If you

    Wednesday, August 29, 2018 5:23 AM
  • Hi,

    May I know whether you want manage AD LDS by AD Users and Computers?

    If yes, I would say that we couldn't use it.

    Please refer to the following thread to get more information.


    If you are manage the current domain on a member server, please make sure the current logged user is a domain admin and required ports are opened.


    If you have anything unclear or I misunderstood what your means, please feel free to let me know.

    Best Regards,


    Please remember to mark the replies as answers if they help and unmark them if they provide no help.
    If you have feedback for TechNet Subscriber Support, contact tnmff@microsoft.com.

    Wednesday, August 29, 2018 9:13 AM
  • Thanks William

    The problem is with the ports because there is a service called svchost.exe (running in port 389) that I'm unable to change. I've noticed that my domain was not properly installed and when I try to install it I get the following error:

    So when I tried to "clean" the way to install the domain properly (https://social.technet.microsoft.com/Forums/ie/en-US/9ef0945b-6814-444f-9e5c-5da4fb51226e/the-tcp-ports-required-by-active-directory-domain-services-are-already-in-use-on-this-computer?forum=winserver8gen) I can't end this service because it crashes the machine. 

    Just to make it clear, I just want to make my LDAP work, I will let you know if I can fix it

    Thanks to William and Rafiul

    Thursday, August 30, 2018 8:34 AM