This is more than just an addendum to my previous post, as I will show in the following. Due to more than one issue with SP3, I decided to do a clean format and re-install of Win2kPro, and thus here I am, wanting to tweak, but TCP/IP Optimizer doesn't work on my box (When I tweak to the max, it cuts my MaxMTU down to 1420, MSS to 1380, and my TCP Receive window somehow becomes 1376). So anyway, I downloaded Cablenut, and managed to get it to reset all my settings to the default. However, I want/need more. Here are the settings of the network I'm on, and I would appreciate it if optimal TCP/IP registry settings were provided. I'm on campus, and the entire campus is wired with 100mb/s switches. The backbone is a dedicated OC-3 fiber line. I have, in the past, gotten 35000kbps up and down, but not consistently. I would appreciate it if someone could help me figure out optimal settings to best take advantage of the bandwidth available to me. Thanks.