<div>
check it out below link <br />
<br />
<a href="http://social.technet.microsoft.com/Forums/windowsserver/en-US/fd5dc2c8-7805-4727-92f1-def15ea41fa0/dcom-was-unable-to-communicate-with-the-computer-sql9-using-any-of-the-configured-protocols" rel="ugc nofollow">http://social.technet.microsoft.com/Forums/windowsserver/en-US/fd5dc2c8-7805-4727-92f1-def15ea41fa0/dcom-was-unable-to-communicate-with-the-computer-sql9-using-any-of-the-configured-protocols</a>
</div>


check it out below link

http://social.technet.microsoft.com/Forums/windowsserver/en-US/fd5dc2c8-7805-4727-92f1-def15ea41fa0/dcom-was-unable-to-communicate-with-the-computer-sql9-using-any-of-the-configured-protocols [http://social.technet.microsoft.com/Forums/windowsserver/en-US/fd5dc2c8-7805-4727-92f1-def15ea41fa0/dcom-was-unable-to-communicate-with-the-computer-sql9-using-any-of-the-configured-protocols]

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This doesnt look like it is the answer I'm afraid.<br />
<br />
When I open up Server Manager &gt;&nbsp;All Servers I see 3 Nodes - Both Exchange Servers and the DAG Node, all online.
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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.

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<div class="content wysiwyg-content">
Hi<br />
<br />
While investigating another issue I came across these event messages and I thought I'd ask here to get them checked out.<br />
<br />
The errors started on 22/7 and repeat themselves 4 times every 10 minutes (to the second).<br />
<br />
Everything seems to be working fine.<br />
<br />
The error is:<br />
<br />
DCOM was unable to communicate with the computer DAG.&lt;domain&gt; using any of the configured protocols; requested by PID &nbsp; &nbsp; 1f84 (C:\Windows\system32\Serve<wbr />rManager.e<wbr />xe).<br />
<br />
Log Name: System<br />
Source: DistributedCOM<br />
Event ID 10028
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</div>


Hi

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

Exchange DCOM error 10028

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.

Exchange

Within Internet message handling services (MHS), a message transfer agent or mail transfer agent (MTA) or mail relay is software that transfers electronic mail messages from one computer to another using a client–server application architecture. A MTA implements both the client (sending) and server (receiving) portions of the Simple Mail Transfer Protocol (SMTP). The terms mail server, mail exchanger, and MX host may also refer to a computer performing the MTA function. The Domain Name System (DNS) associates a mail server to a domain with mail exchanger (MX) resource records containing the domain name of a host providing MTA services.