Exchange 2013 issue

i have recently implemented Exchange 2013 with HyperV setup.

there are 3 physical servers (one DC and other two exchange 2013 with OS win 2012).

the 2 exchange servers are configured as below:

1) exch server1 - in this i have created 2 virtual servers - one virtual server for mbx role and other virtual server for cas role.
2) exch server2 - in this i have created 3 virtual servers - first one for DC, second one for mbx role and third cas role.

exch server1 and exch server2 are confgiured with high availability and is working fine.

since yesterday i have noticed that in exch server1 the first virtual server running mbx role is having messages in queue and status is "retry" in exch toolbox queue viewer whereas in exch server2 the same status is "ready".

the event id found in first case is 1177.

also when i do "telnet 192.168.1.167 25 (ip address of first mbx virtual server) it is not connecting but it connects when i do "telnet 192.168.1.168 25 (ip address of second virtual mbx server)


(DC's are configured with NLB)

any idea as this is a very new implementation
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kurajeshSenior Systems AnalystAsked:
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DipakConnect With a Mentor Commented:
EVENT ID 1177 denotes that the Cluster service is shutting down because quorum was lost. This could be due to the loss of network connectivity between some or all nodes in the cluster, or a failover of the witness disk.

Run the Validate a Configuration wizard to check your network configuration. If the condition persists, check for hardware or software errors related to the network adapter. Also check for failures in any other network components to which the node is connected such as hubs, switches, or bridges.

Make sure your first server has proper network connectivity and which can be access from outer network.
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