Wireless Woes

[Dymetrie]

So here at Chateau Dimtree we have a lovely wireless network to power the funky laptop which I got for my sister (which I use more and am in fact posting from right now! ), the only problem I've encountered is a curious oddity which, for no reason, causes the interweb connection to drop for a few minutes every now and then.

Now I've checked (on many occasions) and the wireless is still running, the laptop can still see the network and access the other machines connected to it but just can't access t'interweb...

I thought it was possibly just an anomoly with the wireless card and laptop possibly overheating, but I found out yesterday that my brother is getting the same problem on his wireless network (well the losing interweb thing, not sure if he can still access the network as I've not been over to look and he doesn't run loads of machines 24/7 like what we do).

The only thing which is the same for both wireless networks is that they are being run by Netgear Routers (albeit our one with DHCP turned off as the wired router in my room runs t'interweb and DHCP/DNS for the network).

Anyone got any ideas about what could be causing this and how it might be fixed?

Thankee.

Garp Log: additional: My main thought kinda revolves around possible routing issues, though I can't figure out quite why. The setup involves two routers, one non-wireless hooked up to a cable modem, the other is the wireless one connected by physical cable to the primary. My machines are hooked direct into the wireless one and they DONT get the disconnections that the laptop does which kinda implies its a windows issue...?