Dropped WiFi signal, with a twist.

So I've read some earlier posts about Macs running SL dropping Wifi signal, which is consistent with the problems I am experiencing. Ever since I upgraded to SL, wifi signal has been dropping intermittently, maybe about 5 times a day. Running 10.5, these problems never occured.
The twist is, my entire network shuts down. Even PC's connected to the network drop their signal. I have to wait maybe about 30-60 seconds for the network to come back up. I know it's a far stretch to assume an operating system is causing my router to somehow shut off its signal, but the timing of upgrading to SL and having these problems is uncanny.
I have already called Linksys tech support and they instructed me to upgrade the firmware (I have the WRT54G V2 router, which is only about 1.5 years old, so I doubt the router has gone bad). At first I thought this did the trick, but the problems came back, although with less frequency, which is good. But it's still annoying!
Any help or incite is helpful.
Computers connected to the network...
Late 2008 15" MBP
PC Desktop w/ Linksys Wireless G Adapter
Some old crappy laptop

Hey Nvius,
I have kind of the same problem, even in other then my own, wifi environments, i cause the whole network to crash. i tested this several times at a friends house. When i start my macbook and connect to the wifirouter, all other wifi clients loose their entire bandwidth. They stay connected to the rooter, excellent signal strength but impossible to access a site or even connect to the routers setup page.
Did you find a solution for your problem?
thnx,
B

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