problem with active directory domain controller

Anonymous
2023-10-06T13:35:36+00:00

No access to domain server

Windows for business Windows Server Directory services Active Directory

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  1. Anonymous
    2023-10-06T20:59:54+00:00

    Since when this problem started?

    Are you facing this issue with all endpoints?

    Are you able to ping the Domain Controller?

    Have you check log files?

    Open command prompt as administrator and run the following command:

    nltest /sc_reset:<domainname>

    <domainname> is name of your domain.

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  2. Anonymous
    2023-10-09T01:31:06+00:00

    Hello Jeff Toben,

    Thank you for posting in Microsoft Community forum.

    1.What error message did you receive when "No access to domain server"?
    2.How many Domain Controllers are there in your domain?
    3.How did you access to domain server?
    4.Can you ping the domain name or IP of Domain Controller or FQDN of Domain Controller from your current machine?
    For example:
    ping domain.com (domain.com is your domain name)

    ping 1.1.1.1(the IP is IP address of Domain Controller)
    ping DCname.domain.com (FQDN of Domain Controller)

    If you have any question or concern, please feel free to let us know.

    Best Regards,
    Daisy Zhou

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  3. Anonymous
    2023-10-09T16:48:43+00:00

    Server can not be found but if I use the ip I can get to the server, also I can not join any pc to the domain. We have 1 domain server. We access the domain though mapped drives for years. I can ping the ip. I t seems like a dens problem. I can access domain with the ip but not with the pc name.

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  4. Anonymous
    2023-10-10T04:59:31+00:00

    Hello Jeff Toben,

    Thank you for your reply.

    So you only have one forest with single domain and single Domain Controller?

    Not sure if "cannot access domain the DC name" issue and "cannot join any pc to the domain" issue is caused by the same reason or not.

    What error message did you receive when you join PC to domain?

    1.You can check if all the ports that AD require are open or not .

    Active Directory and Active Directory Domain Services Port Requirements

    https://docs.microsoft.com/en-us/previous-versions/windows/it-pro/windows-server-2008-R2-and-2008/dd772723(v=ws.10)?redirectedfrom=MSDN

    Active Directory Replication over Firewalls

    https://docs.microsoft.com/en-us/previous-versions/windows/it-pro/windows-2000-server/bb727063(v=technet.10)?redirectedfrom=MSDN
    Especially,
     check the ports below.

    Application protocol Protocol Ports
    Global Catalog Server TCP 3269
    Global Catalog Server TCP 3268
    LDAP Server TCP 389
    LDAP Server UDP 389
    LDAP SSL TCP 636
    RPC TCP 135
    RPC randomly allocated high TCP ports/ DCOM TCP 1024 – 65535(windows server 2003/R2) <br><br>49152 – 65535(windows server 2008/R2 and later)
    SMB TCP 445
    DNS UDP 53
    DNS TCP 53
    Kerberos TCP 88
    Kerberos UDP 88
    Kerberos Password V5 TCP 464
    Kerberos Password V5 UDP 464
    NTP/SNTP UDP 123
    NetBIOS Datagram Service UDP 138
    NetBIOS Datagram Service TCP 139

    2.Run DCdiag /v on the DC to check if there is any error.

    3.Run net share on DC to check if netlogon and sysvol is shared.

    If you have any question or concern, please feel free to let us know.

    Best Regards,
    Daisy Zhou

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