The Great Fedora Freeze-Out?

[3 chord sloth]

My basic set-up:
::Win7 PC (home-made) hard-wired to a Linksys WRT54G router (re-flashed with dd.wrt).
::Compaq laptop running Vista HP connected wirelessly.
::Old, back-up desktop (Dell Optiplex GX50, circa 2001) running XP Pro, also connected wirelessly (Linksys USB adapter).

This set-up is very stable... I haven't had to reboot the router to get connected ever. Has been this stable since I reflashed the router a year ago.

The problem: I replaced XP on my old, back-up PC with Fedora 11 a few days ago. It has no problem getting a connection to the router and beyond... for about twenty minutes. Then all of my computers lose the internet! I have to reboot the router to regain connectivity for any of my PCs.

The Fedora PC is set to connect to the router on start-up, and it can sit like that for hours with no problem. Only after I fire up the browser (FF3.5.3) does the count-down to failure begin. Even if the Fedora PC is only sitting on its homepage, the whole network will freeze after twenty minutes.

I tried setting the Fedora PC to a static DHCP, but that didn't help. I tried it with and without a firewall... no difference. I turned off the router's password... still freezes.

I'm at a loss. Any ideas anyone? Thanks!

[3 chord sloth]

OK... did some further experiments.

I started up only the Fedora PC and then fired up Firefox. After twenty (or so) minutes, I could no longer load any pages. So the problem isn't too many users connecting to the network, there is something about the Fedora/Firefox set-up that is freezing the router.

I shut down FF, but left the PC on. I re-opened FF, and it wouldn't connect.

I shut down the whole Fedora PC, and restarted it. The wireless icon on top of my desktop says it's connected, and the "bubble" opened saying it was connected to the router, but when I fired up FF, no pages would load. I had to reboot the router to get connected.

Anyone have experience with Fedora? Is there some check-box I'm missing? What could it be doing to the router to freeze it like this? Thanks!

[Alan87i]

Post on the fedora forum at linuxquestions.org for one place to start.
One thing I would try is a different flavor of linux on live cd , maybe an older version with a different kernel. Other things to try is disable the nic interface if it has one from the bios.
And sometimes a bios update helps.
I had this old IBM that would lock up randomly and a bios upgrade fixed it.
Also readers need to know the model of usb adapter.