How to force active directory replication from one DC to another

Question

I am having issues replicating AD from one DC to another. Both servers are Windows Server 2008 R2 SP1. I have used the GUI option in sites and service to force replication. I have also tried repadmin, and ntsdutil.

The command for repadmin that I tried:

repadmin /replicate mars zeus dc=CS,dc=local

I get the error when I try repadmin:

Repadmin can't connect to a "home server", because of the following error. Try specifying a different home server with /homeserver:[dns name]

I have downloaded the Active Directory Replication Status Tool from [here]: I have recived the following error after I ran the replication status.1

I have created a youtube video, better explaining my issues: The video here

I was hoping someone could help me replicate my two DC with AD. I am really not sure what to do next, or what else to try.

Solution 1

It probably is a recent addition of LiveQoS NDIS Filter Driver.

Uncheck the filter on your IPv4 NIC and reboot your servers to be sure. I bet that fixes your problem.

Solution 2

Its not clear what the immediate cause of your issues is, but one thing that jumps out at me is the presence of a 'NDIS Filter Driver' on both your servers' NICs. These drivers are often installed by AV, but in your case seem to be from some sort of QoS software. Filter drivers are a common cause of network issues in Windows.

I'd try disabling or uninstalling the LiveQoS NDIS Filter Driver, rebooting and testing again. Also you don't say whether you've run dcdiag.exe, which would be one of the first things I'd run when troubleshooting AD. Consider running that and posting any errors here.

Comments

[Jeremy Lin]

Repadmin can't connect to a "home server", because of the following error. What is that error?

[nate]

@JeremyLin fixing it now, and set the video not be private. Thanks

[Ryan Ries]

I'm too busy to think about your question right now, but upvote for the Youtube video. Never seen that before.

[BlueCompute]

Run dcdiag.exe on both servers? Also I see there is a third-party filter driver on your NICs - is this a recent addition (LiveQoS NDIS Filter Driver)?

[nate]

@BlueCompute Could you put that in a answer instead of a comment please.