I have 4 exchange 2016 in a DAG setup. there are two sites with two exchange servers on each site. I had to rebuild the exch servers due to recent attack. Now when I ran add-mailboxdatabasecopy and it always fails with Passive Disconnected and resynchronizing message.
I have deleted the DB and run Update-MailboxDatabaseCopy -Identity DB1\MBX1 - -DeleteExistingFiles with same result.
test-replicationhealth shows below error
server1: ClusterNetwork: Failed. network 'replicationDagnetwork01' has no network interface for server 'server2'. Correct the physical network configuration so that each mailbox server hasw exactly one interface on each subnet.
get-databaseavailablitygroupNetwork shows:
Name : MapiDagNetworkDescription
Subnets : {
{10.111.1.0/24,Up}, {10.112.1.0/24,Up}}
Interfaces : {
{mbx1,Up,10.111.1.221}, {mbx3,Up,10.111.1.223}, {mbx2,Up,10.112.1.222}, {MBX4,Up,10.112.1.224}}
MapiAccessEnabled :True
ReplicationEnabled : True
IgnoreNetwork : False
Identity : exchangedag\MapiDagNetwork
IsValid : True
ObjectState : New
Name : ReplicationDagNetwork01
Description :
Subnets : {
{fe80::/64,Up}}
Interfaces : {
{mbx1,Up,fe80::b83e:c6fb:15db:488%13}, {mbx2,Up,fe80::4888:b345:5731:b06b%16}}
MapiAccessEnabled : False
ReplicationEnabled : True
IgnoreNetwork : False
Identity : exchangedag\ReplicationDagNetwork01
IsValid : True
ObjectState : New
It seems that the ClusterNetwork has misconfiguration. I use one physical NIC card with both IPv4&6 enabled. It seem use IPV6 to replicate. The Database avalibility group IP address is 255.255.255.255.
How can I fix this issue? Thanks.