We have an Exchange 2003 server with a handful of storage groups serving various locations around our Domain.
Last week 3 people on one site kept getting password requests when trying to access their E-mail.
Passwords and Domains entered correctly but request just pops up again.
Interesting that this was not the standard Outlook pop-up where the domain is in the 3rd field - We have found that this often contains the machine rather than domain name and so has caused problems in the past.
This pop-up only has two fields and the domain is entered along with the username.
One person using Outlook 2007 and the others 2003.
Outlook web access worked fine.
Logging onto the network seems fine.
Tried all of the usual password cache checks and didn't solve it.
AV installed and up to date on all clients and Servers.
Have tried recreating Offline folder OST file but makes no difference.
Exiting Outlook and going back in will usually allow the user in without prompting.
Problem seems to have spread to most of the users on that site but not to other sites???
User mailboxes are spread over multiple information stores (which are all pretty recent) so doesn't appear to be an Exchange thing, especially since OWA appears to work fine.
ALTools installed on servers and not showing any Bad Passwords.
Anyone seen anything similar or able to suggest any possible causes??