Wireless went flaky !

[Kam Leo]

On 2/4/07, Tom Gederberg <cheetaux at sbcglobal.net> wrote:
> I had a similar problem, I just upgraded my system from FC5 to FC6 a
> couple of days ago.  My wireless card using the RaLink RT2500 chipset.
> After getting my RT2500 driver to work with the initial FC6 kernel
> (2.6.18-1.2798), I did a big yum install which also installed a new
> kernel (2.6.19-1.2895).  I then had to re-make & make install the RT2500
> driver.

The 2.6.19 kernel has a bug in one of its interrupt handling routines.
Have you tried restarting and using the previous 2.6.18 or older
kernel?