REPADMIN Error

swgit
swgit used Ask the Experts™
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When I run repadmin /syncall /APeD, I got the following error message:

SyncAll reported the following errors:
Error contacting server db42d2f1-4da1-4904-96f6-cdb7d6945460._msdcs.domain.com (network error): 1722 (0x6ba):
    The RPC server is unavailable.

Could you please help me fixing this?  Thanks.
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Commented:
Mate,

Have you tried to browse to AD Sites and Services, and then go to the AD site in question then expand the Global catalog.

After that you need to click on the NTDS settings and then click on the middle pane for the replication link, then right click again select Replicate Now.

Please try it and see how it goes.
Top Expert 2012
Commented:
please post dcdiag /q /e and repadmin /replsum and repadmin /showreps
swgitIT Professional

Author

Commented:
@ITSE - it still gives RPC server is unavailable

@sarang_tinguria - please see below:

Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation.  All rights reserved.

C:\Windows\system32>dcdiag /q /e
         [DC01] DsBindWithSpnEx() failed with error 1722,
         The RPC server is unavailable..
         Got error while checking LDAP and RPC connectivity. Please check your
         firewall settings.
         ......................... DC01 failed test Connectivity
            Invalid service type: RpcSs on LBSVR, current value
            WIN32_OWN_PROCESS, expected value WIN32_SHARE_PROCESS
         ......................... LBSVR failed test Services
         [Replications Check,DC02] A recent replication attempt failed:
            From DC01 to DC02
            Naming Context: DC=ForestDnsZones,DC=DOMAIN,DC=com
            The replication generated an error (1256):
            The remote system is not available. For information about network troubleshooting, see Windows Help.

            The failure occurred at 2016-02-10 18:52:02.
            The last success occurred at 2016-01-30 14:50:49.
            339 failures have occurred since the last success.
         [Replications Check,DC02] A recent replication attempt failed:
            From DC01 to DC02
            Naming Context: DC=DomainDnsZones,DC=DOMAIN,DC=com
            The replication generated an error (1256):
            The remote system is not available. For information about network troubleshooting, see Windows Help.

            The failure occurred at 2016-02-10 18:52:03.
            The last success occurred at 2016-01-30 14:50:49.
            277 failures have occurred since the last success.
         [Replications Check,DC02] A recent replication attempt failed:
            From DC01 to DC02
            Naming Context:
            CN=Schema,CN=Configuration,DC=DOMAIN,DC=com
            The replication generated an error (1722):
            The RPC server is unavailable.
            The failure occurred at 2016-02-10 18:52:05.
            The last success occurred at 2016-01-30 14:50:49.
            273 failures have occurred since the last success.
            The source remains down. Please check the machine.
         [Replications Check,DC02] A recent replication attempt failed:
            From DC01 to DC02
            Naming Context: CN=Configuration,DC=DOMAIN,DC=com
            The replication generated an error (1722):
            The RPC server is unavailable.
            The failure occurred at 2016-02-10 18:52:04.
            The last success occurred at 2016-01-30 15:03:34.
            353 failures have occurred since the last success.
            The source remains down. Please check the machine.
         [Replications Check,DC02] A recent replication attempt failed:
            From DC01 to DC02
            Naming Context: DC=DOMAIN,DC=com
            The replication generated an error (1722):
            The RPC server is unavailable.
            The failure occurred at 2016-02-10 19:47:50.
            The last success occurred at 2016-01-30 15:40:22.
            27425 failures have occurred since the last success.
            The source remains down. Please check the machine.
         ......................... DC02 failed test Replications
         An error event occurred.  EventID: 0x00000457
            Time Generated: 02/10/2016   19:46:50
            Event String:
            Driver CutePDF Writer required for printer CutePDF Writer is unknown
. Contact the administrator to install the driver before you log in again.
         An error event occurred.  EventID: 0x00000457
            Time Generated: 02/10/2016   19:46:54
            Event String:
            Driver Xerox WorkCentre 7225 PS required for printer !!LBSVR!
LBHC2AD01 is unknown. Contact the administrator to install the driver before you
 log in again.
         An error event occurred.  EventID: 0x00000457
            Time Generated: 02/10/2016   19:47:01
            Event String:
            Driver Adobe PDF Converter required for printer Adobe PDF is unknown
. Contact the administrator to install the driver before you log in again.
         An error event occurred.  EventID: 0x00000457
            Time Generated: 02/10/2016   19:47:09
            Event String:
            Driver HP LaserJet 400 M401 PCL 6 required for printer HP LaserJet 4
00 M401 (home) is unknown. Contact the administrator to install the driver before you log in again.
         An error event occurred.  EventID: 0x00000457
            Time Generated: 02/10/2016   19:47:11
            Event String:
            Driver Send to Microsoft OneNote 15 Driver required for printer Send
 To OneNote 2013 is unknown. Contact the administrator to install the driver before you log in again.
         An error event occurred.  EventID: 0x00000457
            Time Generated: 02/10/2016   19:47:12
            Event String:
            Driver WebEx Document Loader required for printer WebEx Document Loa
der is unknown. Contact the administrator to install the driver before you log i
n again.
         ......................... DC02 failed test SystemLog

C:\Windows\system32>repadmin /replsum
Replication Summary Start Time: 2016-02-10 19:49:23

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


Source DSA          largest delta    fails/total %%   error
 ARASVR              01h:52m:32s    0 /   5    0
 DC01           11d.04h:58m:34s    5 /   5  100  (1722) The RPC server is unavailable.
 DC02               01h:52m:32s    0 /  10    0
 FVSVR               02h:04m:00s    0 /  20    0
 LBSVR          01h:52m:32s    0 /   5    0
 VALSVR              01h:52m:33s    0 /   5    0


Destination DSA     largest delta    fails/total %%   error
 ARASVR              01h:53m:43s    0 /  10    0
 DC02           11d.04h:58m:38s    5 /  10   50  (1722) The RPC server is unavailable.
 FVSVR               01h:52m:36s    0 /  20    0
 LBSVR          02h:04m:01s    0 /   5    0
 VALSVR              01h:57m:52s    0 /   5    0


Experienced the following operational errors trying to retrieve replication information:
        1722 - DC01

C:\Windows\system32>repadmin /showreps
DEN\DC02
DSA Options: IS_GC
Site Options: (none)
DSA object GUID: 86c92f84-178c-43c9-81ad-09aaff591a53
DSA invocationID: fbe16f2c-164e-4954-957d-49053e8dbb53

==== INBOUND NEIGHBORS ======================================

DC=DOMAIN,DC=com
    FV\FVSVR via RPC
        DSA object GUID: 7eff33f3-4174-4bec-83c2-356996227e58
        Last attempt @ 2016-02-10 17:52:05 was successful.
    DEN\DC01 via RPC
        DSA object GUID: db42d2f1-4da1-4904-96f6-cdb7d6945460
        Last attempt @ 2016-02-10 19:51:21 failed, result 1722 (0x6ba):
            The RPC server is unavailable.
        27435 consecutive failure(s).
        Last success @ 2016-01-30 15:40:22.

CN=Configuration,DC=DOMAIN,DC=com
    FV\FVSVR via RPC
        DSA object GUID: 7eff33f3-4174-4bec-83c2-356996227e58
        Last attempt @ 2016-02-10 17:52:05 was successful.
    DEN\DC01 via RPC
        DSA object GUID: db42d2f1-4da1-4904-96f6-cdb7d6945460
        Last attempt @ 2016-02-10 18:52:04 failed, result 1722 (0x6ba):
            The RPC server is unavailable.
        353 consecutive failure(s).
        Last success @ 2016-01-30 15:03:34.

CN=Schema,CN=Configuration,DC=DOMAIN,DC=com
    FV\FVSVR via RPC
        DSA object GUID: 7eff33f3-4174-4bec-83c2-356996227e58
        Last attempt @ 2016-02-10 17:52:05 was successful.
    DEN\DC01 via RPC
        DSA object GUID: db42d2f1-4da1-4904-96f6-cdb7d6945460
        Last attempt @ 2016-02-10 18:52:05 failed, result 1722 (0x6ba):
            The RPC server is unavailable.
        273 consecutive failure(s).
        Last success @ 2016-01-30 14:50:49.

DC=DomainDnsZones,DC=DOMAIN,DC=com
    FV\FVSVR via RPC
        DSA object GUID: 7eff33f3-4174-4bec-83c2-356996227e58
        Last attempt @ 2016-02-10 17:52:05 was successful.
    DEN\DC01 via RPC
        DSA object GUID: db42d2f1-4da1-4904-96f6-cdb7d6945460
        Last attempt @ 2016-02-10 18:52:03 failed, result 1256 (0x4e8):
            The remote system is not available. For information about network troubleshooting, see Windows Help.
        277 consecutive failure(s).
        Last success @ 2016-01-30 14:50:49.

DC=ForestDnsZones,DC=DOMAIN,DC=com
    FV\FVSVR via RPC
        DSA object GUID: 7eff33f3-4174-4bec-83c2-356996227e58
        Last attempt @ 2016-02-10 17:52:06 was successful.
    DEN\DC01 via RPC
        DSA object GUID: db42d2f1-4da1-4904-96f6-cdb7d6945460
        Last attempt @ 2016-02-10 18:52:02 failed, result 1256 (0x4e8):
            The remote system is not available. For information about network troubleshooting, see Windows Help.
        339 consecutive failure(s).
        Last success @ 2016-01-30 14:50:49.

Source: DEN\DC01
******* 27409 CONSECUTIVE FAILURES since 2016-01-30 15:40:22
Last error: 1256 (0x4e8):
            The remote system is not available. For information about network troubleshooting, see Windows Help.

C:\Windows\system32>
swgitIT Professional

Author

Commented:
cleaned up and demoted/promoted a few servers.  all is well now.

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