I am having issue setting up an account in Outlook 2007 with a new Exchange 2010 server. When I go to control panel -> Mail to setup the Exchange account, after entering name/email address/password, I could to 1) Establish network connection and 2) Search for firstname.lastname@example.org server settings. However, I kept getting the username/password prompt and eventually the error message:
"The action cannot be completed. The connection to Microsoft Exchange is unavailable. Outlook must be online or connected to complete this action."
I am able to login and send/receive emails with the account via OWA, which means there's no AD or password issue here. I could go thru the first 2 steps during the setup which means autodiscover is working fine. So what makes it keep prompting the login box and fail to authenticate?
P.S. I also ran the Outlook Autodiscover option from Remote Connectivity Analyzer on the Exchange 2010 server and the test completed successfully.