I am having an issue updating the config of my RUS Enterprise Configuration object in Exchange. I can change the Exchange server but not the Domain Controller. When I click the browse button, it appears to be trying, and then I get a popup message indicating Operation Failed. ID: 80004005. Now I have already read through MS article 821465 and everything appears to be OK as far as permissions and the serverReference attribute. One thing I will say is the DC its pointing to was dcpromo'd down to a member server a few days ago, but when we realized there was a dependency in Exchange, we promoted it back up to a DC so it should be back to where it was. Of course, I have no idea if this problem was there before the DC demotion because I never tried to update this particular RUS until now. Has this happened to anyone else. I am thinking maybe I need to reboot the Exchange server but I have 4. Since this is at the Org level, which one do I reboot. There is nothing in the Event logs and all the searchng I have done points back to the above MS article.