Exchange 2010 Database Availability group network mis-configured


We have an Exchange 2010 organisation, over 2 sites/subnets connected via a private mpls.  exsvr1 is in site1 and exsvr2 is in site2.  they are connected via a dag and replicate with each other.

All seems to be ok, but with the exchange system manager, click "organisation/mailbox/database availabilty groups.  then Networks.

it shows dag network01 and dag network02.  in dag network 2 expand subnet and it has a red cross icon with Misconfigured, instead of Up.

can some one help.


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Antonio VargasMicrosoft Senior Cloud ConsultantCommented:
Do you have two IPs on the DAG? You need one IP for each subnet that you have DAG servers on.

Also both networks are configured for MAPI and replication?
Are you using only one network card on each DAG server? be sure that both servers can ping each other.
philipfarnesAuthor Commented:

Please see attached settings.


Antonio VargasMicrosoft Senior Cloud ConsultantCommented:
nothing is attached.
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philipfarnesAuthor Commented:
Antonio VargasMicrosoft Senior Cloud ConsultantCommented:
So both are replication enabled.

do a Get-DatabaseAvailabilityGroupNetwork |fl or Get-DatabaseAvailabilityGroupNetwork | ft name, ReplicationEnabled, IgnoreNetwork

check the replicationenabled and the ignorenetwork values on both subnets. those values should be the same.

use the set command to put the values correctly.
you should not be ignoring any network and the replication enabled should be ok. so if the ignorenetwork parameter is misconfigured set it to false on both subnets.
philipfarnesAuthor Commented:
i ran

[PS] C:\Windows\system32>Get-DatabaseAvailabilityGroupNetwork | ft name, ReplicationEnabled, IgnoreNetwork

Name                                                         ReplicationEnabled                           IgnoreNetwork
----                                                         ------------------                           -------------
DAGNetwork01                                                               True                                   False
DAGNetwork02                                                               True                                   False

not sure whats causing this..
Antonio VargasMicrosoft Senior Cloud ConsultantCommented:
What sould be causing that is a network being wrongly configured. Does that subnet on both dag networks matches the IP address of the server? (same subnet)

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philipfarnesAuthor Commented:
subnet issue
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