Ever since i made the change to Vista I have noticed that the browsing of network folders  on my network was slow-with OR without connecting through a domain (esp When browsing Windows Server 2003 shared folders).

When opening the network folder your computer displays straight away but there is  5-6+ second wait before other network computers & shares are displayed…

So what to do? The fix involves changing two settings from the command prompt. You need to run the command prompt as an administrator. You can do this by right-clicking and selecting run as administrator. Type in the following commands:

netsh int tcp set global autotuninglevel=disabled
netsh int tcp set global rss=disabled

You will need to restart your machine afterwards. The difference is night and day. I wonder what the reasoning was for not having Vista set like this out of the box?If you are unhappy with the changes you can restore the default settings with

netsh int tcp set global autotuninglevel=normal
netsh int tcp set global rss=enabled

 I saw this fix over at Excalibur Partners