Hi there, we are running a flat topology in terms of LAN. Have got an Exchange 07 server and clients running Outlook 2007. On couple of occasions there are random connection problems.
Whilst running a continous ping without any timeouts, the mailbox lose its connection to the server and so a message "Trying to connect to Microsoft Exchange" appears. It takes 40 seconds or so until the connection restores, than usually after few minutes it happens again.
Cached mode is in use, so we have re-created those 2 ost files, problem still persists.