Hi to all.After a change of internet provider (and a change of our WAN ip address) a password promt start to appear repeatedly in our Outlook 2007 client.I have done configuration check suggested in this guide http://technet.microsoft.com/en-us/library/bb124649(EXCHG.65).aspx but i can't find the problem.When outlook startr prompt appear (more times) during the syncronization. The address reported on pwd prompt is not the server name but the address of rpc: "remote.DOMAIN.Ext" .Mail has been already downloaded when pwd prompt appear.I can access to OWA account without problem.I think this is a Outlook client problem but i can't find solution. Also after remove and re-add Exchange profile and after Outlook re-installation problem exist.Did you have any suggestion?thankyou

Duplicate question. Replied your previous question. http://social.technet.microsoft.com/Forums/en-US/exchangesvradmin/thread/38a1d38f-34f3-43bc-aa4d-84fe9ea2f661Santhosh Sivarajan | MCTS, MCSE (W2K3/W2K/NT4), MCSA (W2K3/W2K/MSG), CCNA, Network+ Houston, TX http://blogs.sivarajan.com/ http://publications.sivarajan.com/ This posting is provided "AS IS" with no warranties, and confers no rights.

Sorry...probably an error whe i try to update post with additional information.