[Lancaster] Network puzzle

[Joseph Le Brech]

Is this happening when you have the Linux PCs running?if so its a Windows bug with the TCP Scaling Option. It means that Linux has successful allocation slots to share bandwidth with the router, and windows is trying to barge in and it's being rejected.http://en.wikipedia.org/wiki/TCP_window_scale_optionthat's my take on that anyway. Vista has recently fixed that bug from older versions of windows.Date: Sun, 25 Jan 2009 12:12:17 +0000From: ken.walton at carandol.netTo: lancaster at mailman.lug.org.ukSubject: [Lancaster] Network puzzleHi folks,I have a network puzzle for you. Not knowing much about networks, I've no idea what's causing this, but it strikes me as rather odd.My landlady has a wifi router for our house. It's connected by network cable to her Windows machine, and by wifi (whenever people are in and using their computers) to three Linux machines and another Windows machine. 
Every now and then, the internet will become unreachable. The wifi signal strength is strong, but there's no way of connecting to the internet. Normally, if you log into http://10.0.0.2 you get asked a password and can then get to the router settings screen. When this problem occurs, Firefox says it's got to that screen, but its actually blank and the password query box doesn't come up. But if I ping 10.0.0.2 it shows as present.
Switching the router off and on again solves the problem, but it's annoying to have to do so, and the problem occurs more than it used to.Yesterday, the problem occurred again. But it happened while I was running the Transmission bittorrent  client -- and that continued to download and upload perfectly even though I couldn't connect to the internet, or the 10.0.0.2 setup screen.  
Any bright ideas gratefully accepted! -- Ken Walton
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