Outlook 2007 and POP 3 performance issues
I received a request the other week from Lars, who was having issues with Outlook 2007:
I am desperate for help. Having installed Office 2007 in Vista Business, I can no longer use Outlook with any POP3 account. It is simply too slow. I downloads approximately 1 Mb of mails per hour! I am using a high speed ADSL connection at home and a normal high speed connection in the office. It makes Outlook 2007 virtually unusable. I have unchecked every filter and feature possible, but with no change.
Apparently I am not the only one with this problem and many people I know have de-installed Outlook 2007 and re-installed Outlook 2003 and then the problem disappeared.
I spent quite a while, searching around internally, finding other similar types of problems and finally found the team who resolved this issue (after a lot of head scratching) by doing the following in Vista:
Go to Programs | Accessories then right click command line and select "run as administrator".
At the prompt type: netsh interface tcp set global autotuninglevel=disable
This is specific to Vista and it is an incompatible network card that is the cause. We went back into the forums and found that a couple of other people also stumbled onto this solution.
So Greg has kindly written a kb article number 935400 which walks you through the process if you're experiencing the same issues...
