Exchange 2010 Pre-Deployment Analyzer - Error occurred validating the Active Directory logon credentials
I currently have a Windows 2003/Exchange 2003 environment (front-end/back-end) that I plan on transitioning to Exchange 2010. I have created virtual copies of my two 2003 domain controllers, the front end server and the mailbox server in a closed VMWare environment. I have created a new virtual machine running Windows 2008 R2 x64 which I want to install Exchange 2010 CAS and Hub Transport roles onto. However I ran the Pre-Deployment Analyzer, selected my domain controller after the "Checking Network Connectivity and Permissions" step I receive the error message: "An error occurred when validating the Active Directory logon credentials. Try entering a different set of credentials." I've tried numerous things (using our general domain admin account, using my own account which is also a member of Domain Admins). The Domain Admins group is a member of the local administrators group on the Exchange servers. I'm entering the information in the following format: - Active Directory Server: servername.domain.local - AD server access username: admin-user - AD server access password: password - AD server access domain: DOMAIN (not domain.local, though I've tried that as well) - Exchange Server Access username: admin-user - Exchange Server Access password: password - Exchange Server Access domain: DOMAIN How can I determine what is failing? The error is the only output, and accounts that I know have access are failing. **UPDATED** Never mind, I guess. I set the AD server as just servername instead of servername.domain.local and ensured the domain credentials for both AD and Exchange just had domain and the tool ran fine. :/
April 5th, 2011 7:56pm

Did you try to reset the Admin Password? Post the permissions you have on Admin account... Gulab | MCTS-MCITP Messaging: 2010 | MCTS-MCITP Messaging: 2007 | MCC 2011 | Skype: Gulab.Mallah
Free Windows Admin Tool Kit Click here and download it now
April 6th, 2011 6:09pm

Hi JGrover, Any updates on this issue? Do you follow Gulab’s suggestion to have a try? If so, please post the permission you have on the Admin account. From the error you got, this may issue for your logon credential, you can use other credential to have a try. Thanks, EvanPlease remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.
April 10th, 2011 3:46pm

This topic is archived. No further replies will be accepted.

Other recent topics Other recent topics