This may help. I got that error once. I had to remove and readd the Server name and password from the midtier config tool. Don't forget to Restart the services.
I also cleared the cache while I was in there. JK ************************************************************* This e-mail message, including any attachments, is for the sole use of the addressee(s) to whom it has been sent, and may contain information that is confidential or legally protected. If you are not the intended recipient or have received this message in error, you are not authorized to copy, distribute, or otherwise use this message or its attachments. Please notify the sender immediately by return e-mail and permanently delete this message and any attachments. Dunkin' Brands Inc. makes no warranty that this e-mail is error or virus free.
