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Why is my 2008 R2 server not allowing remote desktop connections internally or externally?

Posted on 2014-08-07
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Last Modified: 2015-04-08
I have 1 DC and 1 application server.  Today the DC stopped accepting RDC connections internally or externally.  And internally, I cannot ping, or browse to the DC at all.  dcdiag /q provides the following:

         Warning: POOLER-SRV1 is not advertising as a time server.

         ......................... POOLER-SRV1 failed test Advertising

         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.
         ......................... POOLER-SRV1 failed test FrsEvent

         Error NT AUTHORITY\ENTERPRISE DOMAIN CONTROLLERS doesn't have

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

         DC=ForestDnsZones,DC=poolerped,DC=local
         Error NT AUTHORITY\ENTERPRISE DOMAIN CONTROLLERS doesn't have

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

         DC=DomainDnsZones,DC=poolerped,DC=local
         ......................... POOLER-SRV1 failed test NCSecDesc

            Could not open w32time Service on POOLER-SRV1, error 0x424

            "The specified service does not exist as an installed service."

         ......................... POOLER-SRV1 failed test Services

         Warning: DcGetDcName(TIME_SERVER) call failed, error 1355

         A Time Server could not be located.

         The server holding the PDC role is down.

         Warning: DcGetDcName(GOOD_TIME_SERVER_PREFERRED) call failed, error

         1355

         A Good Time Server could not be located.

         ......................... poolerped.local failed test LocatorCheck

Need help on where to start!!
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Question by:chj12316
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Lee W, MVP earned 1500 total points
ID: 40247912
I've seen 2008 Servers that lose the network location settings and think they are on public networks and not domain networks.  FIRST thing I'd check is if NLA (Network Location Awareness) thinks it's connected to a Public network or a Domain network.  Open the "Network and Sharing Center" and check what it says under "View your active networks".

If that checks out, then what you should always do when you have problems you don't know exactly where to resolve is check the event logs and start searching the failures to see why.
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Author Closing Comment

by:chj12316
ID: 40713778
excellent point and a good place to start
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