Why a difference in delivery speed?

[Todd]

I currently have two PCs in my office. Both run Outlook 2002. One
runs on 2000 Pro, the other XP Pro (SP2). Occasionally I end up with
Outlook open on both machines. Messages consistently arrive 20-30
seconds sooner on my 2000 box than they do on the XP box. The
Exchange 2000 server and these two PCs are all on the same network
subnet. The Instant Messaging option in Outlook's configuration is
not enabled.

Any thoughts on how to troubleshoot this difference in delivery?

Regards,

Todd

 

[neo [mvp outlook]]

Is the built-in firewall on under XP (SP2)? If yes, the built-in firewall
blocks a UDP packet from the Exchange server to the client that says, "hey,
something changed and you need to refresh yourself". This packet travels on
an arbritrary port above 1023 and can't be locked to a specific port.

 

[Todd]

Your message led my research in a useful direction.

It seems to be working properly now.

I ended up with the following registry additions:

[HKEY_CURRENT_USER\Software\Microsoft\Office\10.0\Outlook\RPC]
"ForcePolling"=dword:00000000

[HKEY_CURRENT_USER\Software\Policies\Microsoft\Office\10.0\Outlook\RPC]
"ForcePolling"=dword:00000000

Those two apparently disable polling.

I also excluded outlook.exe in the XP SP 2 firewall.

Thanks,

Todd