Unable to add the MB server into DAG

Hello EE,





The above is my LAB setup. I've configured the CAS array successfully and created the DAG, added MB1 into DAG but unable to add MB2 to DAG. The error was populating as follows when adding MB2 into DAG.




Summary: 2 item(s). 1 succeeded, 1 failed.
Elapsed time: 00:09:05


MB1
Completed

Exchange Management Shell command completed:
Add-DatabaseAvailabilityGroupServer -MailboxServer 'MB1' -Identity 'DAG'

Elapsed Time: 00:08:56


MB2
Failed

Error:
The Microsoft Exchange Replication service does not appear to be running on "mb2". Make sure that the server is operating, and that the services can be queried remotely.
Click here for help... http://technet.microsoft.com/en-US/library/ms.exch.err.default(EXCHG.141).aspx?v=14.2.247.1&t=exchgf1&e=ms.exch.err.ExEA6C3F

Exchange Management Shell command attempted:
Add-DatabaseAvailabilityGroupServer -MailboxServer 'MB2' -Identity 'DAG'

Elapsed Time: 00:00:09
 



As per the error it says the Replication service is not started on the Box MB2, but I've checked and it's working fine, recycled the service, and rebooted the box MB2. But still I'm facing the same problem.

I'm using Hyper-V and all those are Virtual Machines.