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DC1 cannot ping (using IP) other DCs and they cannot ping DC1 RRS feed

  • Question

  • New DC1. It was working fine until the original DC was demoted and removed. Now it cannot ping some computers using IP and the same computers cannot ping DC1. The DC1 cannot communicate with any of the other domains.

    dcdiag reports this error:

    Warning: DcGetDcName(PDC_REQUIRED) call failed, error 1355
             A Primary Domain Controller could not be located.
             The server holding the PDC role is down.

    Wednesday, May 18, 2016 2:44 PM

Answers

  • Regarding the multihoned NIC, we are running the DC1 on a file server >>> Really,this is not a recommended scenario file server on a domain controller.So you can migrate file server role on a member server...

    This posting is provided AS IS with no warranties or guarantees,and confers no rights. Best regards Burak Uğur

    • Marked as answer by abidabbi Thursday, May 19, 2016 3:26 PM
    Wednesday, May 18, 2016 4:55 PM

All replies

  • To start with,

    Verify, if the local windows firewall service is turned off on DC or not. if turned on, you have to allow exceptions for communications.

    To isolate,  turn off the windows firewall.


    Devaraj G | Technical solution architect

    Wednesday, May 18, 2016 2:49 PM
  • New DC1. It was working fine until the original DC was demoted and removed. Now it cannot ping some computers using IP and the same computers cannot ping DC1. The DC1 cannot communicate with any of the other domains.

    dcdiag reports this error:

    Warning: DcGetDcName(PDC_REQUIRED) call failed, error 1355
             A Primary Domain Controller could not be located.
             The server holding the PDC role is down.

    Hi

     Did you transfer fsmo roles to an avaible DC,check with "netdom query fsmo" if not you should transfer&sieze fsmo roles first ; https://support.microsoft.com/en-us/kb/255504

    also will do a metadata cleanup for completely remove old dc ;

    metadata cleanup ; https://technet.microsoft.com/en-us/library/cc816907(v=ws.10).aspx?f=255&mspperror=-2147217396

    Then run "dcdiag" "repadmin /replsum" ,"ipconfig /all" and paste results on OneDrive..


    This posting is provided AS IS with no warranties or guarantees,and confers no rights. Best regards Burak Uğur

    Wednesday, May 18, 2016 2:54 PM
  • Firewall is off for domain.
    Wednesday, May 18, 2016 3:06 PM
  • Roles are held by a different DC; not DC1 or it's predecessor. I have not setup One Drive. I hope that is ok. I will post results for each test separately.

    New error in event viewer:

    The DNS server has encountered a critical error from the Active Directory. Check that the Active Directory is functioning properly. The extended error debug information (which may be empty) is "". The event data contains the error.

    New error in dcdiag regarding SYSVOL...

    dcdiag results

    ---------------

    Directory Server Diagnosis

    Performing initial setup:
       Trying to find home server...
       Home Server = DC1
       * Identified AD Forest.
       Done gathering initial info.

    Doing initial required tests

       Testing server: Site1\DC1
          Starting test: Connectivity
             ......................... DC1 passed test Connectivity

    Doing primary tests

       Testing server: Site1\DC1
          Starting test: Advertising
             ......................... DC1 passed test Advertising
          Starting test: FrsEvent
             There are warning or error events within the last 24 hours after the SYSVOL has been shared.  Failing SYSVOL
             replication problems may cause Group Policy problems.
             ......................... DC1 passed test FrsEvent
          Starting test: DFSREvent
             ......................... DC1 passed test DFSREvent
          Starting test: SysVolCheck
             ......................... DC1 passed test SysVolCheck
          Starting test: KccEvent
             ......................... DC1 passed test KccEvent
          Starting test: KnowsOfRoleHolders
             ......................... DC1 passed test KnowsOfRoleHolders
          Starting test: MachineAccount
             ......................... DC1 passed test MachineAccount
          Starting test: NCSecDesc
             ......................... DC1 passed test NCSecDesc
          Starting test: NetLogons
             ......................... DC1 passed test NetLogons
          Starting test: ObjectsReplicated
             ......................... DC1 passed test ObjectsReplicated
          Starting test: Replications
             ......................... DC1 passed test Replications
          Starting test: RidManager
             ......................... DC1 passed test RidManager
          Starting test: Services
             ......................... DC1 passed test Services
          Starting test: SystemLog
             A warning event occurred.  EventID: 0x00000C18
                Time Generated: 05/18/2016   09:23:34
                Event String: The primary Domain Controller for this domain could not be located.
             A warning event occurred.  EventID: 0x00002724
                Time Generated: 05/18/2016   09:23:54
                Event String:
                This computer has at least one dynamically assigned IPv6 address.For reliable DHCPv6 server operation, you s
    hould use only static IPv6 addresses.
             A warning event occurred.  EventID: 0x000003F6
                Time Generated: 05/18/2016   09:24:24
                Event String:
                Name resolution for the name stats.aws.rubiconproject.com timed out after none of the configured DNS servers
     responded.
             A warning event occurred.  EventID: 0x000003F6
                Time Generated: 05/18/2016   09:25:05
                Event String:
                Name resolution for the name ib.adnxs.com timed out after none of the configured DNS servers responded.
             A warning event occurred.  EventID: 0x00000C18
                Time Generated: 05/18/2016   09:26:27
                Event String: The primary Domain Controller for this domain could not be located.
             An error event occurred.  EventID: 0xC0001B58
                Time Generated: 05/18/2016   09:27:35
                Event String: The Diagnostic Service Host service failed to start due to the following error:
             An error event occurred.  EventID: 0xC0001B58
                Time Generated: 05/18/2016   09:31:11
                Event String: The Diagnostic Service Host service failed to start due to the following error:
             A warning event occurred.  EventID: 0x80004235
                Time Generated: 05/18/2016   09:31:27
                Event String: Member Nic {e7d8c941-9791-4d34-9802-1967e27ab51d} Disconnected.
             A warning event occurred.  EventID: 0x80004235
                Time Generated: 05/18/2016   09:31:49
                Event String: Member Nic {c9d3780d-27d8-4592-a086-8be179c42541} Disconnected.
             A warning event occurred.  EventID: 0x80004235
                Time Generated: 05/18/2016   09:32:09
                Event String: Member Nic {5503f9c1-7abf-46e7-8243-d41ccb896dd9} Disconnected.
             ......................... DC1 failed test SystemLog
          Starting test: VerifyReferences
             ......................... DC1 passed test VerifyReferences


       Running partition tests on : ForestDnsZones
          Starting test: CheckSDRefDom
             ......................... ForestDnsZones passed test CheckSDRefDom
          Starting test: CrossRefValidation
             ......................... ForestDnsZones passed test CrossRefValidation

       Running partition tests on : DomainDnsZones
          Starting test: CheckSDRefDom
             ......................... DomainDnsZones passed test CheckSDRefDom
          Starting test: CrossRefValidation
             ......................... DomainDnsZones passed test CrossRefValidation

       Running partition tests on : Schema
          Starting test: CheckSDRefDom
             ......................... Schema passed test CheckSDRefDom
          Starting test: CrossRefValidation
             ......................... Schema passed test CrossRefValidation

       Running partition tests on : Configuration
          Starting test: CheckSDRefDom
             ......................... Configuration passed test CheckSDRefDom
          Starting test: CrossRefValidation
             ......................... Configuration passed test CrossRefValidation

       Running partition tests on : domain1
          Starting test: CheckSDRefDom
             ......................... domain1 passed test CheckSDRefDom
          Starting test: CrossRefValidation
             ......................... domain1 passed test CrossRefValidation

       Running enterprise tests on : domain1.com
          Starting test: LocatorCheck
             Warning: DcGetDcName(PDC_REQUIRED) call failed, error 1355
             A Primary Domain Controller could not be located.
             The server holding the PDC role is down.
             ......................... domain1.com failed test LocatorCheck
          Starting test: Intersite
             ......................... domain1.com passed test Intersite
    PS C:\Users\Administrator.domain1>


    Directory Server Diagnosis

    Performing initial setup:
       Trying to find home server...
       Home Server = DC1
       * Identified AD Forest.
       Done gathering initial info.

    Doing initial required tests

       Testing server: Site1\DC1
          Starting test: Connectivity
             ......................... DC1 passed test Connectivity

    Doing primary tests

       Testing server: Site1\DC1
          Starting test: Advertising
             ......................... DC1 passed test Advertising
          Starting test: FrsEvent
             There are warning or error events within the last 24 hours after the SYSVOL has been shared.  Failing SYSVOL
             replication problems may cause Group Policy problems.
             ......................... DC1 passed test FrsEvent
          Starting test: DFSREvent
             ......................... DC1 passed test DFSREvent
          Starting test: SysVolCheck
             ......................... DC1 passed test SysVolCheck
          Starting test: KccEvent
             ......................... DC1 passed test KccEvent
          Starting test: KnowsOfRoleHolders
             ......................... DC1 passed test KnowsOfRoleHolders
          Starting test: MachineAccount
             ......................... DC1 passed test MachineAccount
          Starting test: NCSecDesc
             ......................... DC1 passed test NCSecDesc
          Starting test: NetLogons
             ......................... DC1 passed test NetLogons
          Starting test: ObjectsReplicated
             ......................... DC1 passed test ObjectsReplicated
          Starting test: Replications
             ......................... DC1 passed test Replications
          Starting test: RidManager
             ......................... DC1 passed test RidManager
          Starting test: Services
             ......................... DC1 passed test Services
          Starting test: SystemLog
             A warning event occurred.  EventID: 0x00000C18
                Time Generated: 05/18/2016   09:23:34
                Event String: The primary Domain Controller for this domain could not be located.
             A warning event occurred.  EventID: 0x00002724
                Time Generated: 05/18/2016   09:23:54
                Event String:
                This computer has at least one dynamically assigned IPv6 address.For reliable DHCPv6 server operation, you s
    hould use only static IPv6 addresses.
             A warning event occurred.  EventID: 0x000003F6
                Time Generated: 05/18/2016   09:24:24
                Event String:
                Name resolution for the name stats.aws.rubiconproject.com timed out after none of the configured DNS servers
     responded.
             A warning event occurred.  EventID: 0x000003F6
                Time Generated: 05/18/2016   09:25:05
                Event String:
                Name resolution for the name ib.adnxs.com timed out after none of the configured DNS servers responded.
             A warning event occurred.  EventID: 0x00000C18
                Time Generated: 05/18/2016   09:26:27
                Event String: The primary Domain Controller for this domain could not be located.
             An error event occurred.  EventID: 0xC0001B58
                Time Generated: 05/18/2016   09:27:35
                Event String: The Diagnostic Service Host service failed to start due to the following error:
             An error event occurred.  EventID: 0xC0001B58
                Time Generated: 05/18/2016   09:31:11
                Event String: The Diagnostic Service Host service failed to start due to the following error:
             A warning event occurred.  EventID: 0x80004235
                Time Generated: 05/18/2016   09:31:27
                Event String: Member Nic {e7d8c941-9791-4d34-9802-1967e27ab51d} Disconnected.
             A warning event occurred.  EventID: 0x80004235
                Time Generated: 05/18/2016   09:31:49
                Event String: Member Nic {c9d3780d-27d8-4592-a086-8be179c42541} Disconnected.
             A warning event occurred.  EventID: 0x80004235
                Time Generated: 05/18/2016   09:32:09
                Event String: Member Nic {5503f9c1-7abf-46e7-8243-d41ccb896dd9} Disconnected.
             ......................... DC1 failed test SystemLog
          Starting test: VerifyReferences
             ......................... DC1 passed test VerifyReferences


       Running partition tests on : ForestDnsZones
          Starting test: CheckSDRefDom
             ......................... ForestDnsZones passed test CheckSDRefDom
          Starting test: CrossRefValidation
             ......................... ForestDnsZones passed test CrossRefValidation

       Running partition tests on : DomainDnsZones
          Starting test: CheckSDRefDom
             ......................... DomainDnsZones passed test CheckSDRefDom
          Starting test: CrossRefValidation
             ......................... DomainDnsZones passed test CrossRefValidation

       Running partition tests on : Schema
          Starting test: CheckSDRefDom
             ......................... Schema passed test CheckSDRefDom
          Starting test: CrossRefValidation
             ......................... Schema passed test CrossRefValidation

       Running partition tests on : Configuration
          Starting test: CheckSDRefDom
             ......................... Configuration passed test CheckSDRefDom
          Starting test: CrossRefValidation
             ......................... Configuration passed test CrossRefValidation

       Running partition tests on : domain1
          Starting test: CheckSDRefDom
             ......................... domain1 passed test CheckSDRefDom
          Starting test: CrossRefValidation
             ......................... domain1 passed test CrossRefValidation

       Running enterprise tests on : domain1.com
          Starting test: LocatorCheck
             Warning: DcGetDcName(PDC_REQUIRED) call failed, error 1355
             A Primary Domain Controller could not be located.
             The server holding the PDC role is down.
             ......................... domain1.com failed test LocatorCheck
          Starting test: Intersite
             ......................... domain1.com passed test Intersite
    PS C:\Users\Administrator.domain1>

    Directory Server Diagnosis

    Performing initial setup:
       Trying to find home server...
       Home Server = DC1
       * Identified AD Forest.
       Done gathering initial info.

    Doing initial required tests

       Testing server: Site1\DC1
          Starting test: Connectivity
             ......................... DC1 passed test Connectivity

    Doing primary tests

       Testing server: Site1\DC1
          Starting test: Advertising
             ......................... DC1 passed test Advertising
          Starting test: FrsEvent
             There are warning or error events within the last 24 hours after the SYSVOL has been shared.  Failing SYSVOL
             replication problems may cause Group Policy problems.
             ......................... DC1 passed test FrsEvent
          Starting test: DFSREvent
             ......................... DC1 passed test DFSREvent
          Starting test: SysVolCheck
             ......................... DC1 passed test SysVolCheck
          Starting test: KccEvent
             ......................... DC1 passed test KccEvent
          Starting test: KnowsOfRoleHolders
             ......................... DC1 passed test KnowsOfRoleHolders
          Starting test: MachineAccount
             ......................... DC1 passed test MachineAccount
          Starting test: NCSecDesc
             ......................... DC1 passed test NCSecDesc
          Starting test: NetLogons
             ......................... DC1 passed test NetLogons
          Starting test: ObjectsReplicated
             ......................... DC1 passed test ObjectsReplicated
          Starting test: Replications
             ......................... DC1 passed test Replications
          Starting test: RidManager
             ......................... DC1 passed test RidManager
          Starting test: Services
             ......................... DC1 passed test Services
          Starting test: SystemLog
             A warning event occurred.  EventID: 0x00000C18
                Time Generated: 05/18/2016   09:23:34
                Event String: The primary Domain Controller for this domain could not be located.
             A warning event occurred.  EventID: 0x00002724
                Time Generated: 05/18/2016   09:23:54
                Event String:
                This computer has at least one dynamically assigned IPv6 address.For reliable DHCPv6 server operation, you s
    hould use only static IPv6 addresses.
             A warning event occurred.  EventID: 0x000003F6
                Time Generated: 05/18/2016   09:24:24
                Event String:
                Name resolution for the name stats.aws.rubiconproject.com timed out after none of the configured DNS servers
     responded.
             A warning event occurred.  EventID: 0x000003F6
                Time Generated: 05/18/2016   09:25:05
                Event String:
                Name resolution for the name ib.adnxs.com timed out after none of the configured DNS servers responded.
             A warning event occurred.  EventID: 0x00000C18
                Time Generated: 05/18/2016   09:26:27
                Event String: The primary Domain Controller for this domain could not be located.
             An error event occurred.  EventID: 0xC0001B58
                Time Generated: 05/18/2016   09:27:35
                Event String: The Diagnostic Service Host service failed to start due to the following error:
             An error event occurred.  EventID: 0xC0001B58
                Time Generated: 05/18/2016   09:31:11
                Event String: The Diagnostic Service Host service failed to start due to the following error:
             A warning event occurred.  EventID: 0x80004235
                Time Generated: 05/18/2016   09:31:27
                Event String: Member Nic {e7d8c941-9791-4d34-9802-1967e27ab51d} Disconnected.
             A warning event occurred.  EventID: 0x80004235
                Time Generated: 05/18/2016   09:31:49
                Event String: Member Nic {c9d3780d-27d8-4592-a086-8be179c42541} Disconnected.
             A warning event occurred.  EventID: 0x80004235
                Time Generated: 05/18/2016   09:32:09
                Event String: Member Nic {5503f9c1-7abf-46e7-8243-d41ccb896dd9} Disconnected.
             ......................... DC1 failed test SystemLog
          Starting test: VerifyReferences
             ......................... DC1 passed test VerifyReferences


       Running partition tests on : ForestDnsZones
          Starting test: CheckSDRefDom
             ......................... ForestDnsZones passed test CheckSDRefDom
          Starting test: CrossRefValidation
             ......................... ForestDnsZones passed test CrossRefValidation

       Running partition tests on : DomainDnsZones
          Starting test: CheckSDRefDom
             ......................... DomainDnsZones passed test CheckSDRefDom
          Starting test: CrossRefValidation
             ......................... DomainDnsZones passed test CrossRefValidation

       Running partition tests on : Schema
          Starting test: CheckSDRefDom
             ......................... Schema passed test CheckSDRefDom
          Starting test: CrossRefValidation
             ......................... Schema passed test CrossRefValidation

       Running partition tests on : Configuration
          Starting test: CheckSDRefDom
             ......................... Configuration passed test CheckSDRefDom
          Starting test: CrossRefValidation
             ......................... Configuration passed test CrossRefValidation

       Running partition tests on : domain1
          Starting test: CheckSDRefDom
             ......................... domain1 passed test CheckSDRefDom
          Starting test: CrossRefValidation
             ......................... domain1 passed test CrossRefValidation

       Running enterprise tests on : domain1.com
          Starting test: LocatorCheck
             Warning: DcGetDcName(PDC_REQUIRED) call failed, error 1355
             A Primary Domain Controller could not be located.
             The server holding the PDC role is down.
             ......................... domain1.com failed test LocatorCheck
          Starting test: Intersite
             ......................... domain1.com passed test Intersite

    Wednesday, May 18, 2016 3:15 PM
  • PS C:\Users\Administrator.domain1> repadmin /replsum
    Replication Summary Start Time: 2016-05-18 10:17:50

    Beginning data collection for replication summary, this may take awhile:
      .......


    Source DSA          largest delta    fails/total %%   error
     DC1                 58m:37s    5 /  15   33  (1722) The RPC server is unavailable.
     DC2                 13m:37s    0 /  15    0
     DC3                 13m:38s    0 /  15    0
     DC0                 10m:55s    0 /  15    0


    Destination DSA     largest delta    fails/total %%   error
     DC1                 10m:58s    0 /  15    0
     DC2                 09m:33s    0 /  15    0
     DC3                 04m:34s    0 /  15    0
     DC0                 58m:38s    5 /  15   33  (1722) The RPC server is unavailable.

    Wednesday, May 18, 2016 3:21 PM
  • Windows IP Configuration

       Host Name . . . . . . . . . . . . : DC1
       Primary Dns Suffix  . . . . . . . : domain1
       Node Type . . . . . . . . . . . . : Hybrid
       IP Routing Enabled. . . . . . . . : No
       WINS Proxy Enabled. . . . . . . . : No
       DNS Suffix Search List. . . . . . : klingner.com

    Ethernet adapter B-2012:

       Connection-specific DNS Suffix  . :
       Description . . . . . . . . . . . : Microsoft Network Adapter Multiplexor Dri
    ver
       Physical Address. . . . . . . . . : 00-0A-F7-8E-D5-78
       DHCP Enabled. . . . . . . . . . . : No
       Autoconfiguration Enabled . . . . : Yes
       Link-local IPv6 Address . . . . . : fe80::6830:d0dd:cf15:8fbb%19(Preferred)
       IPv4 Address. . . . . . . . . . . : 100.100.100.12(Preferred)
       Subnet Mask . . . . . . . . . . . : 255.255.255.0
       Default Gateway . . . . . . . . . : 100.100.100.254
       DHCPv6 IAID . . . . . . . . . . . : 419433207
       DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1E-BA-E2-E3-00-0A-F7-8E-D5-78

       DNS Servers . . . . . . . . . . . : 192.100.36.12
                                           100.100.100.12
       NetBIOS over Tcpip. . . . . . . . : Enabled

    Tunnel adapter 6TO4 Adapter:

       Connection-specific DNS Suffix  . :
       Description . . . . . . . . . . . : Microsoft 6to4 Adapter
       Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
       DHCP Enabled. . . . . . . . . . . : No
       Autoconfiguration Enabled . . . . : Yes
       IPv6 Address. . . . . . . . . . . : 2002:6464:640c::6464:640c(Preferred)
       Default Gateway . . . . . . . . . :
       DHCPv6 IAID . . . . . . . . . . . : 587202560
       DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1E-BA-E2-E3-00-0A-F7-8E-D5-78

       DNS Servers . . . . . . . . . . . : 192.100.36.12
                                           100.100.100.12
       NetBIOS over Tcpip. . . . . . . . : Disabled

    Tunnel adapter isatap.{57135A89-C4D0-4530-87C4-8204364F1314}:

       Media State . . . . . . . . . . . : Media disconnected
       Connection-specific DNS Suffix  . :
       Description . . . . . . . . . . . : Microsoft ISATAP Adapter #2
       Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
       DHCP Enabled. . . . . . . . . . . : No
       Autoconfiguration Enabled . . . . : Yes

    Wednesday, May 18, 2016 3:23 PM
  • Hi

     First of all DC dns ip address needs to point itself,you should fix this on all DC's,then run "ipconfig /flushdns" "ipconfig /registerdns" verify dns records updated at the end.then you could modify network provider order to point Ipv4 first;(if you could not,just disable Ipv6)

    Modify the protocol bindings and network provider order

    https://technet.microsoft.com/en-us/library/cc732472(v=ws.10).aspx

    Also you can disable unused NIC's,so multiholmed nic not recommeded on domain controllers,

    Then for There are warning or error events within the last 24 hours after the SYSVOL has been shared.Failing SYSVOL replication problems may cause Group Policy problems
     Check ; https://support.microsoft.com/en-us/kb/257338

    (1722) The RPC server is unavailable. ; https://support.microsoft.com/en-us/kb/2102154

    Finaly you need to verfiy necessary ports are accessible between DC's,you can use PortQryUI to check ; https://www.microsoft.com/en-us/download/details.aspx?id=24009


    This posting is provided AS IS with no warranties or guarantees,and confers no rights. Best regards Burak Uğur

    Wednesday, May 18, 2016 3:33 PM
  • Regarding the multihoned NIC, we are running the DC1 on a file server. We've never had trouble with this scenario. The team has a single IP address. Can we make this work?

    Wednesday, May 18, 2016 4:11 PM
  • Regarding the multihoned NIC, we are running the DC1 on a file server >>> Really,this is not a recommended scenario file server on a domain controller.So you can migrate file server role on a member server...

    This posting is provided AS IS with no warranties or guarantees,and confers no rights. Best regards Burak Uğur

    • Marked as answer by abidabbi Thursday, May 19, 2016 3:26 PM
    Wednesday, May 18, 2016 4:55 PM
  • I know it is not ideal, but it should be ok. We do this at most of our sites. We also have the NICs teamed. 

    DC1 can resolve the other DCs names but cannot ping them even with IP. Other DCs cannot ping DC1. Yet, several computers are connected to DC1 and working fine.  I ran repadmin /syncall and SyncAll terminated with no errors. I only see the RPC error with repadmin /replsum. Most diagnostics fail as the DCs can't even see each other.

    Any ideas?


    Wednesday, May 18, 2016 5:04 PM
  • DFS-R works with the DCs that DC1 cannot ping.
    Wednesday, May 18, 2016 6:11 PM
  • Hi,
    The error "The RPC server is unavailable" may relate to port being blocked or network connectivity issue or due to DNS misconfiguration.
    I would suggest contact network/security team to verify whether all the related AD ports being configured and allowed on the firewall for communication. Alternatively, I would suggest you use Portquery tool from to verify that the necessary ports are opened or not. Please see: https://support.microsoft.com/en-us/kb/816103
    In addition, here is a similar thread, you could take a look and use for reference:
    https://social.technet.microsoft.com/Forums/windowsserver/en-US/1d48523c-9220-44bd-9f34-6bcb12a5bc69/2-of-3-dcs-wont-ping-each-other?forum=winserverDS

    Regards,
    Wendy


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

    Thursday, May 19, 2016 8:09 AM
    Moderator
  • Ensure the IP setting recommendations: http://www.ahmedmalek.com/web/fr/articles.asp?artid=23

    RPC unavailable - Connectivity issue, follow Wendy suggestions and also you might want to temporary disable  the security software running on your DCs.

    Troubleshooting AD Replication error 1722: The RPC server is unavailable

    https://support.microsoft.com/en-us/kb/2102154

    DCs should NOT use more then one NIC. Since you have teamed NIC,  assure that they a re NOT configured for load balancing as this is NOT SUPPORTED.


    Devaraj G | Technical solution architect

    Thursday, May 19, 2016 1:35 PM
  • Removing one of the network cables made it start working. It is still running multihoned, but without the bad (?) port. Thanks for your help!
    Thursday, May 19, 2016 3:32 PM
  • Glad your issue got resolved. Please revert for any clarifications.

    Devaraj G | Technical solution architect

    Thursday, May 19, 2016 4:03 PM