Outlook 2003 RPC over HTTP extremely slow on Cisco PIX 501 VPN
Posted on 2004-11-13
I've been reading several message threads on this subject but couldn't get to a solution that helped me. So, here it goes:
laptop at home:
Windows XP service pack 2, firewall turned off, Cisco VPN client 4.0.5(C), cable modem - client connects to PIX, logon is successful. Local router is configured as a separate subnet from the PIX as well as the office domain
PIX is managed by an outside network service co, full T1 going into the office
Exchange 2003 server, all a GC server/DC, single server option for RPC over HTTP, Verisign certificate loaded
- internal name mail01.panda.local
- external name mail.p-and-a.cc
Windows 2003 Domain Controller
Outlook /rpcdiag option indicates that we are successfully connecting to Exchange Server via HTTPS after ~10 mins.
Outlook slows down laptop or freezes it completely whenever it attempts a Send/Receive.
can successfully ping mail01 server with excellent ping times
can access OWA with excellent response
Recently upgraded laptop to XP service pack 2
When I am on vpn, pinging mail01.panda.local is going to the external IP address of the server. Not sure why it isn't going to the server's internal address.
I used to be able to access server mail01 via remote desktop connection by simply typing in the name at the connect prompt. Now I have to enter the IP address.
Any thoughts on how to further diagnose the slow performance problem or correct this issue?
Thanks, in advance, for any assitance.