Trying to setup DAG between 2 exchange 2013 servers - one of them being in the remote location with physical point to point line. We have no firewall rules between 2 locations

EX01 ( on site)                                           EX02 (remote)

ETH01 10.11.1.2/24 - MAPI                       ETH01 10.11.13.15/24

ETH02 10.0.0.1/30 - REPLICATIOn            ETH02 10.0.0.2/30 - REPLICATION

Witness server is in 3rd remote location

These are the test results I get from Test-ReplicationHealth and Cluster Network Validation

I also run a Nmap command to make sure udp port 3343 is open on both sides

Did you create a database copy for your mailbox databases (particularly the one in message?) 

If no, then Database Redundancy is going to fail, since without any database copies theres no redundancy.

For availability is the database mounted and healthy?

For more information try running:

test-replicationhealth | fl server, check, result, error

That should allow to see the entire error msg., 

I forgot to mention that I removed original DAG that was created and re-created a new one with the same name - I also noticed that the Computer account for dag was enabled so I disabled it - the name for the original dag and new dag was kept the same - are there any changes I need to do to GUID in ADSI edit ?

Alright, so both failures are because you dont have any database copies configured.

https://technet.microsoft.com/en-us/library/dd298080%28v=exchg.150%29.aspx?f=255&MSPPError=-2147217396

Hi,

The error message said that current Redundancy Count was 1 but expected Redundancy Count was 2. Therefore, Database 'IT2013' does not have enough copies configured to meet the validation criteria.

Please replicate that database to another server at least. We can refer to Hinte's suggestion to add another copy for the database 'IT2013' in the DAG then check whether the issue persists.

Regards,

There is an issue with Witness Server I can't resolve - please refer to the attached screenshots