I have 2 domain controllers namely DC1 & DC2.
Both DC's are migrated from old server 2008/2012 servers to 2016 servers.[all are VM guests]. I migrated OS and AD one by one, example I first removed DC2, and installed 2016, then promoted it as DC. afterwards when I tried to remove DC1 but got some errors
therefore I remove it by dcrpromo / forcefully it and deleted its entries from DC2. afterwards i installed new 2016 on DC1 and promoted it as DC. now both are on server 2016 working fine, user can login with both servers, GPO applying fine, replicating
all data ok.
In DC1 event viewer I am seeing following errors.
Error 2010
The DFS Replication service has detected that all replicated folders on volume C: have been disabled or deleted.
Additional Information:
Volume: DFC1C48B-0000-0000-0000-501F00000000
Error 4606
The DFS Replication service is not replicating the SYSVOL replicated folder. If the domain controller was demoted and the DFS Replication service has been replicating SYSVOL, this event is expected and no user action is required.
Additional Information:
Replicated Folder Name: SYSVOL Share
Replicated Folder ID: 3E924A01-9986-4FCD-9D7B-1727E3BB2C11
Replication Group Name: Domain System Volume
Replication Group ID: D69F0A32-4398-40EE-8A20-E619BC4CA7BA
Member ID: EA3CA468-0F3A-4807-BD4B-3EE700D95816
Read-Only: 0
Error 4010
The DFS Replication service detected that the replicated folder at local path C:\Windows\SYSVOL_DFSR\domain has been removed from configuration.
Additional Information:
Replicated Folder Name: SYSVOL Share
Replicated Folder ID: 3E924A01-9986-4FCD-9D7B-1727E3BB2C11
Replication Group Name: Domain System Volume
Replication Group ID: D69F0A32-4398-40EE-8A20-E619BC4CA7BA
Member ID: EA3CA468-0F3A-4807-BD4B-3EE700D95816
Along with these, I am also seeing Error 1863 in Event viewer under Directory Services
This is the replication status for the following directory partition on this directory server.
Directory partition:
DC=MYDOMAIN
This directory server has not received replication information from a number of directory servers within the configured latency interval.
Latency Interval (Hours):
24
Number of directory servers in all sites:
1
Number of directory servers in this site:
1
The latency interval can be modified with the following registry key.
Registry Key:
HKLM\System\CurrentControlSet\Services\NTDS\Parameters\Replicator latency error interval (hours)
To identify the directory servers by name, use the dcdiag.exe tool.
You can also use the support tool repadmin.exe to display the replication latencies of the directory servers. The command is "repadmin /showvector /latency <partition-dn>".
However If I run all the diagnostic rules on DC1 like net share , replication, group policies, dcdiag showing all things ok. Results are below.
Text
C:\Windows\system32>net share
Share name Resource Remark
-------------------------------------------------------------------------------
C$ C:\ Default share
D$ D:\ Default share
IPC$ Remote IPC
ADMIN$ C:\Windows Remote Admin
NETLOGON C:\Windows\SYSVOL_DFSR\sysvol\MYDOMAIN\SCRIPTS
Logon server share
SYSVOL C:\Windows\SYSVOL_DFSR\sysvol Logon server share
The command completed successfully.
Text
C:\Windows\system32>repadmin /replsummary
Replication Summary Start Time: 2018-08-30 08:17:11
Beginning data collection for replication summary, this may take awhile:
.....
Source DSA largest delta fails/total %% error
DC2 22m:38s 0 / 5 0
DC1 21m:43s 0 / 5 0
Destination DSA largest delta fails/total %% error
DC2 21m:43s 0 / 5 0
DC1 22m:38s 0 / 5 0
Text
C:\Windows\system32>repadmin /queue
Repadmin: running command /queue against full DC localhost
Queue contains 0 items.
Text
C:\Windows\system32>dcdiag /test:frsevent
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: Default-First-Site-Name\DC1
Starting test: Connectivity
......................... DC1 passed test Connectivity
Doing primary tests
Testing server: Default-First-Site-Name\DC1
Starting test: FrsEvent
......................... DC1 passed test FrsEvent
Running partition tests on : ForestDnsZones
Running partition tests on : DomainDnsZones
Running partition tests on : Schema
Running partition tests on : Configuration
Running partition tests on : mydomain
Running enterprise tests on : mydomain