I have a client running Outlook 2003 and connecting to Exchange 2007 using RPC over HTTP. All the other clients are on exactly the same OS (XP), Outlook version to the latest sp and they are working fine. We have a Public cert which is far from expiry.
As with the other users she logs in and then it simply displays as disconnected in the bottom right. I have checked the connection status and it displays the same - disconnected. I class myself pretty experienced in Outlook anywhere and the connectivity issues it comes with but I have tried everything.
The only clue I have to the root of the issue is when I log into her OWA the certificate warning is displaying, which it shouldn't and doesn't on anyone elses. I am assuming I need to reset the cert store but I can't seem to find any details on this?