I made a thread a while ago about bad performance.
My network is like this
HOME-PC1 - Stores all documents including movies, tv shows, music etc
HOME-LAPTOP1 & HOME-LAPTOP2 - Connect to HOME-PC1 during login and get desktop/documents/music etc...
HOME-PC1 is Windows Vista x64 Ultimate
HOME-LAPTOP1 is Windows Vista x64 Home Basic
HOME-LAPTOP2 is Windows Vista x32 Home Premium
All are updated to Service Pack 1 RC1
I had this problem even without Service Pack 1 and even with HOME-PC1 with the TCP/IP connection limit removed.
My router is a RangeMax™ NEXT Wireless N Router - Gigabit Edition - WNR854T and HOME-PC1 is connected via a Gigabit line.
The laptops are at 54mbps with a strong signal.
I'm totally clueless to why when the laptops are opening files or copying they copy at around 500KB/s-2.5MB/s when I should be getting 11.5MB/s max.