“Cannot locate Database” Error Towards the End of an SP1 Installation

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I installed MOM SP1 on Server 1 successfully. Then proceeded to Server 2. Near the end of the installation I get an error that it cannot locate the database.

Both servers are in the same subnet. Name resolution is not a problem. The server exists on ALL my internal DNS's. I can telnet to <ServerName> 1433 from Server2.

In the System Log of Event Viewer I get a DCOM error stating that DCOM got error "Class not registered" from the computer Server1 when attempting to activate the server.

Contributed By: Richard Navis
Well, I put in a call to Microsoft technical support and got the answer I needed. There are some new steps for SP1 that weren't required for MOM SR. They are:

  1. Give the service account local permissions for:

    o Login as a batch
    o Login as a service account
    o Create a token object
    o Act as part of the OS
     
  2. I had to run “Domcnfg” and change the default authentication level from “NONE” to “Connect
     
  3. The MOM Database can’t listen on a port other than port 1433.
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