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Exchange DCOM error 10028


While investigating another issue I came across these event messages and I thought I'd ask here to get them checked out.

The errors started on 22/7 and repeat themselves 4 times every 10 minutes (to the second).

Everything seems to be working fine.

The error is:

DCOM was unable to communicate with the computer DAG.<domain> using any of the configured protocols; requested by PID     1f84 (C:\Windows\system32\ServerManager.exe).

Log Name: System
Source: DistributedCOM
Event ID 10028
1 Solution
bikerhongAuthor Commented:
This doesnt look like it is the answer I'm afraid.

When I open up Server Manager > All Servers I see 3 Nodes - Both Exchange Servers and the DAG Node, all online.
Simon Butler (Sembee)ConsultantCommented:
What changed on that date? Did you install an update?
Is the server fully patched?
It would tend to suggest the servers are having problems accessing the DAG.

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