Hi, great tutorial. It did help me improve my speeds, but i am stuck at a point - "NAT Error". My config are as follows: Windows XP SP2 (yes, the one with the built-in firewall) connected to a Cable modem via a Dell 2350 wireless router. I have done the following from the guide: a) Set-up a static ip address Set up port forwarding on my windows firewall c) Set up port forwarding on my router (using the guide on portfoward.com) d) Used TCPOptimizer e) Patched my tcpip.sys Here are a few observations-cum-problems so far: a) "Nat Error" on my utorrent status bar (drat!) Open Office torrent helped me reach a speed of 65 kBps download and 12 kBps (yes B - un-e-believable! Thanks guys) c) It maxed out my connection too (drat!) d) My continuously flickering connection to my wifi router. Any inputs? or questions? thanks in advance.. - Agni