Wireless portion of router dying?

I have a Linsys BEFW11S4, which I have had for almost 2 years now. I have a smoothwall, so I have nat and dhcp disabled on it. Just recently, the wireless portion of the router turns off, so my sister cannot connect, and I cannot log into it. The only thing that fixes it is a reboot.

This has never happened before, so any ideas?

we have 2 of those at work, and a couple more at customers houses. they all seem to do that, i have come to hate them. i have yet to find a fix for them, other than burning and replacing it.

Yeh I had one of those too they were crap. It would die every day and required a power cycle. I broke down and bought a SMC for $9.99 and it's working great.