I installed SBS Server 2008 and followed all gui installs. Exchange worked perfectly for 2 days. on the 3rd day, it started asking for a password. It is happening accross all workstations eventhough the workstations are mixed. (1) xp-pro and (4) windows7 machines. Once the password is entered, the prompt comes back and does not go away. Please help! info@fusion1consulting.com

This might be related to that the Information Store service (MSExchangeIS) is not running. On several SBS 2008 boxes I've seen that neither that service nor the transport service (MSExchangeTransport)are starting up automatically after a reboot. It has been an issue on my own SBS 2008 as well. After the latest patches for SBS and Exchange (Rollup 9, NOT SP2), these problems have disappeared.The easiest way to check for all Exchange needed Exchange services is to run this PowerShell command: Test-ServiceHealth(Start, All Programs, Microsoft Exchange Server 2007, Exchange Management Shell)It's OK that MSExchangeEdgeSync is not running (most likely you are not using an Exchange 2007 Edgeserver). All the other services listed should be running. This means that the RequiredServicesRunning for Mailbox and Client Access are True. Under Transport Transport it will be False (due to the Edge Sync), but in addition check out if MSExchangeTransport is running. The status of this service is not related to your problem, but is necessary for sending and receiving mail. MCTS: Messaging | MCSE: S+M | Small Business Specialist

On Sun, 13-Dec-09 06:35:51 GMT, Muffinpcman wrote:>I installed SBS Server 2008 and followed all gui installs. Exchange worked perfectly for 2 days. on the 3rd day, it started asking for a password. It is happening accross all workstations eventhough the workstations are mixed. (1) xp-pro and (4) windows7 machines. Once the password is entered, the prompt comes back and does not go away. Please help! info@fusion1consulting.com instead of Outlook?Are there any errors recorded in the Application or System logs,especially around the end of the 2nd day?All Exchange services running?Any changes made to authentication methods on the CAS role?Are the Outlook clients configured to use RPC-Over-HTTPS? Are theyusing it even on "fast" networkks?---Rich MatheisenMCSE+I, Exchange MVP--- Rich Matheisen MCSE+I, Exchange MVP

Could you please help to clarify the questions above? Meanwhile, I suggest you run Exbap(Exchange management Console | Toolbox | Best Practices Analyzer) to do a health check for the server.

Take a look here and see if this helps:SBS 2008 suddenly prompts for network creds for e-mail constantlyhttp://social.microsoft.com/Forums/en-US/partnerwinserversbs/thread/9f7ced8b-625d-40ff-b4d2-0bc6062ffefeMCTS: Messaging | MCSE: S+M | Small Business Specialist

Have a look at http://social.technet.microsoft.com/Forums/en-US/exchangesvradmin/thread/0c94187d-bc97-4fa5-9413-e8762a25a360. The problem refered to in the link only occurred with Outlook 2007 on a local LAN connection. Outlook 2003 was fine as was Outlook 2007 via Outlook Anywhere.

Hi Muffinpcman,Have you tried the suggestions above? Any update for the issue?

Server died after 5 days. The owner shipped server back to Dell and decided to go w/old 2003 SBS server. Worked perfect.... Thank you all! Muffin......