Computer object is not replicated from one DC to another after 24 hours lapsed ?

People,

Can anyone here please assist me in troubleshooting the AD domain controller replication where some of my AD computer object is not replicated after waiting for more than 24 hours from one DC to another ?

Here's some background information:

PRODDC67-VM --> Data Center Domain Controller.
PRODDC70-VM --> Remote Office Domain Controller.

This is the PortQry tool result from one DC to another above:
portqry.exe -n PRODDC70-VM -e 135 -p TCP exits with return code 0x00000000.
portqry.exe -n PRODDC70-VM -e 137 -p UDP exits with return code 0x80000003.
portqry.exe -n PRODDC70-VM -e 138 -p UDP exits with return code 0x00000002.
portqry.exe -n PRODDC70-VM -e 139 -p TCP exits with return code 0x00000000.
portqry.exe -n PRODDC70-VM -e 3268 -p TCP exits with return code 0x00000000.
portqry.exe -n PRODDC70-VM -e 3269 -p TCP exits with return code 0x00000000.
portqry.exe -n PRODDC70-VM -e 389 -p BOTH exits with return code 0x00000000.
portqry.exe -n PRODDC70-VM -e 42 -p TCP exits with return code 0x00000001.
portqry.exe -n PRODDC70-VM -e 445 -p TCP exits with return code 0x00000000.
portqry.exe -n PRODDC70-VM -e 53 -p BOTH exits with return code 0x00000000.
portqry.exe -n PRODDC70-VM -e 636 -p TCP exits with return code 0x00000000.
portqry.exe -n PRODDC70-VM -e 88 -p BOTH exits with return code 0x00000002.

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portqry.exe -n PRODDC67-VM -e 135 -p TCP exits with return code 0x00000000.
portqry.exe -n PRODDC67-VM -e 137 -p UDP exits with return code 0x80000003.
portqry.exe -n PRODDC67-VM -e 138 -p UDP exits with return code 0x00000002.
portqry.exe -n PRODDC67-VM -e 139 -p TCP exits with return code 0x00000000.
portqry.exe -n PRODDC67-VM -e 3268 -p TCP exits with return code 0x00000000.
portqry.exe -n PRODDC67-VM -e 3269 -p TCP exits with return code 0x00000000.
portqry.exe -n PRODDC67-VM -e 389 -p BOTH exits with return code 0x00000000.
portqry.exe -n PRODDC67-VM -e 42 -p TCP exits with return code 0x00000001.
portqry.exe -n PRODDC67-VM -e 445 -p TCP exits with return code 0x00000000.
portqry.exe -n PRODDC67-VM -e 53 -p BOTH exits with return code 0x00000000.
portqry.exe -n PRODDC67-VM -e 636 -p TCP exits with return code 0x00000000.
portqry.exe -n PRODDC67-VM -e 88 -p BOTH exits with return code 0x00000002.

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This is the error from the DCDIAG from PRODDC70-VM:

      Starting test: KccEvent
         A warning event occurred.  EventID: 0x8000061E
            Time Generated: 11/01/2016   17:21:00
            Event String:
            All directory servers in the following site that can replicate the directory partition over this transport are currently unavailable.
         An error event occurred.  EventID: 0xC000051F
            Time Generated: 11/01/2016   17:21:00
            Event String:
            The Knowledge Consistency Checker (KCC) has detected problems with the following directory partition.
         A warning event occurred.  EventID: 0x80000749
            Time Generated: 11/01/2016   17:21:00
            Event String:
            The Knowledge Consistency Checker (KCC) was unable to form a complete spanning tree network topology. As a result, the following list of sites cannot be reached from the local site.
         A warning event occurred.  EventID: 0x8000061E
            Time Generated: 11/01/2016   17:21:00
            Event String:
            All directory servers in the following site that can replicate the directory partition over this transport are currently unavailable.
         An error event occurred.  EventID: 0xC000051F
            Time Generated: 11/01/2016   17:21:00
            Event String:
            The Knowledge Consistency Checker (KCC) has detected problems with the following directory partition.
         A warning event occurred.  EventID: 0x80000749
            Time Generated: 11/01/2016   17:21:00
            Event String:
            The Knowledge Consistency Checker (KCC) was unable to form a complete spanning tree network topology. As a result, the following list of sites cannot be reached from the local site.
         A warning event occurred.  EventID: 0x8000061E
            Time Generated: 11/01/2016   17:21:00
            Event String:
            All directory servers in the following site that can replicate the directory partition over this transport are currently unavailable.
         An error event occurred.  EventID: 0xC000051F
            Time Generated: 11/01/2016   17:21:00
            Event String:
            The Knowledge Consistency Checker (KCC) has detected problems with the following directory partition.
         A warning event occurred.  EventID: 0x80000749
            Time Generated: 11/01/2016   17:21:00
            Event String:
            The Knowledge Consistency Checker (KCC) was unable to form a complete spanning tree network topology. As a result, the following list of sites cannot be reached from the local site.
         A warning event occurred.  EventID: 0x8000061E
            Time Generated: 11/01/2016   17:21:00
            Event String:
            All directory servers in the following site that can replicate the directory partition over this transport are currently unavailable.
         An error event occurred.  EventID: 0xC000051F
            Time Generated: 11/01/2016   17:21:00
            Event String:
            The Knowledge Consistency Checker (KCC) has detected problems with the following directory partition.
         A warning event occurred.  EventID: 0x80000749
            Time Generated: 11/01/2016   17:21:00
            Event String:
            The Knowledge Consistency Checker (KCC) was unable to form a complete spanning tree network topology. As a result, the following list of sites cannot be reached from the local site.

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Any help would be greatly appreciated.

Thanks,
LVL 9
Senior IT System EngineerIT ProfessionalAsked:
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Niten KumarConnect With a Mentor Principal Systems AdministratorCommented:
There is a technet thread with an error similar to yours on at the link below.
The Knowledge Consistency Checker (KCC) was unable to form a complete spanning tree network topology. As a result, the following list of sites cannot be reached from the local site


https://social.technet.microsoft.com/Forums/windowsserver/en-US/e689b8d9-845e-4f2e-af6b-b237fb76ebb4/the-knowledge-consistency-checker-kcc-was-unable-to-form-a-complete-spanning-tree-network?forum=winserverDS

The issue was solved by registering the w32time...see link below:

https://awinish.wordpress.com/2011/10/07/time-server-role-in-forestdomain-2/
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Niten KumarPrincipal Systems AdministratorCommented:
Can you also run repadmin /showrepl and repadmin /replsummary and post results
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Senior IT System EngineerIT ProfessionalAuthor Commented:
Niten,

This is the error result from the PRODDC67-VM

PRODDC67-VM:  Current time is 2016-11-01 10:23:40.
   DC=ForestDnsZones,DC=MyDomain,DC=local
      Last replication received from PRODDC70-VM at 2016-10-11 20:06:33
   DC=DomainDnsZones,DC=MyDomain,DC=local
      Last replication received from PRODDC70-VM at 2016-10-11 20:06:33
   CN=Schema,CN=Configuration,DC=MyDomain,DC=local
      Last replication received from PRODDC70-VM at 2016-10-11 20:06:32
   CN=Configuration,DC=MyDomain,DC=local
      Last replication received from PRODDC70-VM at 2016-10-11 20:06:32
   DC=MyDomain,DC=local
      Last replication received from PRODDC70-VM at 2016-10-11 20:06:32

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Niten KumarPrincipal Systems AdministratorCommented:
Seems like you have connectivity issues since the last replication happened on 11-10-2016. Do you have two DCs in your environment only.  Is the time on both dcs synchronized.  Can you run repadmin /replsum and repadmin /syncall and see if you get any errors.
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