Trouble with Exchange after demoting from DC

nunoluz — Thu, 13 Jan 2011 06:00:00 GMT

If you’re like me, always messing around with VM’s and server configs, etc., than you might have reached a point where you had to demote your Exchange Server from the DC role.

After this your Exchange installation might start giving out some annoying errors like this:

So, being tired of this, I did some research and found this piece of valuable information over at Chris and Robin’s Blog:

The fix for me was not the highlighted one in that thread, but Adam Miceli's comment:
"Delete this file: c:\users\<specific user>\appdata\roaming\microsoft\mmc\Exchange Management Console"

This COMPLETELY worked and we no longer receive the above errors.

It worked for me and and al is back to its normal state.

Trouble when trying to install Exchange Server 2010 SP1

nunoluz — Thu, 13 Jan 2011 06:00:00 GMT

When trying to install Exchange Server 2010 SP1, the Setup would always throw out this error:

Mailbox Role
Failed

Error:
The following error was generated when "$error.Clear();
buildToBuildUpgrade-ExsetdataAtom -AtomName SystemAttendant -DomainController $RoleDomainController" was run: "An error occurred with error code '3221685221' and message 'Overlapped I/O operation is in progress.'.".

It had to do with the Windows Firewall being turned off.

On this server the Firewall wouldn’t work and also seemed to have “lost” a registry entry, this was why it would not load the Windows Firewall Snap-in.

Here is the registry fix for this problem:

http://social.technet.microsoft.com/Forums/en-CA/smallbusinessserver/thread/565793d3-a1f4-4912-b52f-b7d08c1ee736

After importing the registry entry from another server, and after I restarted the server, I was able to turn on the Firewall and then install Exchange SP1 without any problem!

A big special thanks to Ben from Microsoft for pointing me out on the right direction!

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Trouble with Exchange after demoting from DC

Trouble when trying to install Exchange Server 2010 SP1