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GPO: Network Name cannot be found

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Hi

When opening Group Policy Editor on a Remote DC i am getting the following error:

The network name cannot b found.

My set up is:

Head Office: 

DC1 - Server 2008 R2 (10.1.*.*/23)

DC2 - Server 2008 R2 (10.1.*.*/23)

MPLS Link to Branch Office

DC3 - Server 2008 R2 (192.168.10.*/24)

DC3 is the one with the issue

I have attempted the Burflags recommendation on the TechNet but to no success.

I can the see the SYSVOL folder is not Shared on DC3 - so i shared it.

I have one DNS Error: (but i dont think this is related)

DNS: Zone_msdcs.Office.elitetele.com is an Active Directory integrated DNS Zone and must be available

Connectivity between DC1 and DC3 is fine with no issues (15ms Ping round times)

It resolves all server names with no problems

I ran a DCDIAG and got the following:

(I changed the servernames to the above, so you know which is which)


Directory Server Diagnosis


Performing initial setup:

   Trying to find home server...

   Home Server = DC3

   * Identified AD Forest. 
   Done gathering initial info.


Doing initial required tests

   
   Testing server: Elite-Cornhill\DC3

      Starting test: Connectivity

         ......................... DC3 passed test Connectivity



Doing primary tests

   
   Testing server: Elite-Cornhill\DC3

      Starting test: Advertising

         Warning: DsGetDcName returned information for

         \\DC2.DOmain.DOmain.com, when we were trying to reach

         DC3.

         SERVER IS NOT RESPONDING or IS NOT CONSIDERED SUITABLE.

         ......................... DC3 failed 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. 
         ......................... DC3 passed test FrsEvent

      Starting test: DFSREvent

         ......................... DC3 passed test DFSREvent

      Starting test: SysVolCheck

         ......................... DC3 passed test SysVolCheck

      Starting test: KccEvent

         ......................... DC3 passed test KccEvent

      Starting test: KnowsOfRoleHolders

         ......................... DC3 passed test KnowsOfRoleHolders

      Starting test: MachineAccount

         ......................... DC3 passed test MachineAccount

      Starting test: NCSecDesc

         Error NT AUTHORITY\ENTERPRISE DOMAIN CONTROLLERS doesn't have 

            Replicating Directory Changes In Filtered Set
         access rights for the naming context:

         DC=ForestDnsZones,DC=office,DC=elitetele,DC=com
         Error NT AUTHORITY\ENTERPRISE DOMAIN CONTROLLERS doesn't have 

            Replicating Directory Changes In Filtered Set
         access rights for the naming context:

         DC=DomainDnsZones,DC=office,DC=elitetele,DC=com
         ......................... DC3 failed test NCSecDesc

      Starting test: NetLogons

         Unable to connect to the NETLOGON share! (\\DC3\netlogon)

         [DC3] An net use or LsaPolicy operation failed with error

         67, The network name cannot be found..

         ......................... DC3 failed test NetLogons

      Starting test: ObjectsReplicated

         ......................... DC3 passed test ObjectsReplicated

      Starting test: Replications

         ......................... DC3 passed test Replications

      Starting test: RidManager

         ......................... DC3 passed test RidManager

      Starting test: Services

         ......................... DC3 passed test Services

      Starting test: SystemLog

         An error event occurred.  EventID: 0x00000457

            Time Generated: 01/08/2014   07:56:42

            Event String:

            Driver Send To Microsoft OneNote 2010 Driver required for printer Send To OneNote 2010 is unknown. Contact the administrator to install the driver before you log in again.

         An error event occurred.  EventID: 0x00000457

            Time Generated: 01/08/2014   07:56:47

            Event String:

            Driver TOSHIBA Universal Printer 2 required for printer !!ELIFNP01!Tosh_2040_Accounts_DawsonHouse_Colour is unknown. Contact the administrator to install the driver before you log in again.

         An error event occurred.  EventID: 0x00000457

            Time Generated: 01/08/2014   07:56:48

            Event String:

            Driver SwyxFax Printer Driver required for printer SwyxFax is unknown. Contact the administrator to install the driver before you log in again.

         An error event occurred.  EventID: 0x00000457

            Time Generated: 01/08/2014   07:56:49

            Event String:

            Driver WebEx Document Loader required for printer WebEx Document Loader is unknown. Contact the administrator to install the driver before you log in again.

         ......................... DC3 failed test SystemLog

      Starting test: VerifyReferences

         ......................... DC3 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 : office

      Starting test: CheckSDRefDom

         ......................... office passed test CheckSDRefDom

      Starting test: CrossRefValidation

         ......................... office passed test CrossRefValidation

   
   Running enterprise tests on : Domain.DOmain.com

      Starting test: LocatorCheck

         ......................... Domain.Domain.com passed test

         LocatorCheck

      Starting test: Intersite

         ......................... Domain.Domain.com passed test Intersite



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