We had a power failure. I was able to get onto the network via vpn and open the information store, thanks to the post regarding the LMHOSTS file entry from lrmoore
Now, I can't get there again. Same issue. Can ping vpn, can get folders by http, and can connect to VPN but can not open information store.
I am using Windows XP, Outlook 2002, and Cisco VPN. I am pretty sure they are using Exchange 2003 and Windows 2003 as the servers.
Any ideas on this?