Excellent information here. I got 2 of the Actiontec routers from ebay. The setup was pretty easy, thanks to xnappo!
I am able to stream movies encoded at 25 Mbps without issues to my HTPC running XP SP2. However, when trying to stream a 40 Mbps CBR file, the movie stutters (file plays fine on local drive). The network seemed to max out at 33 Mbps. I am using SMB. The streaming is actually worst when using NFS in this case. I believe chadw01
asked about setting the TCP window size in this post
. I assume no one figured out if that is possible. I don't see it any where browsing through the advance settings.
Testing with iperf, I am able get about 80 Mbps (both directions) when the TCP window size is set to 128kb. One thing interesting is that if I copy a large file across the network (Windows file share copy) I also get about 33 Mbps. However, if I initiate another file copy, the network speed will bump up to 57 Mbps. If another one is initiated, the network will, again, bump up to close to 80 Mbps. It almost seems like there's the speed cap for each TCP connection. Although I am not sure why iperf wasn't affected.
I've been trying for weeks tweaking the XP network, and sever side settings, etc. and still can't break the cap. Anyone else have any new info regarding router settings?