[rt2x00-users] No probe response - rt2800usb

[linux newbie]

Hi,

I am using USB wireless card on my embedded linux (kernel version
2.6.350 system . It uses rt2800 driver.

>From my device I can able to associate with AP using wpa_supplicant.
If I ping to some other terminal it is working fine for long time.

My device connect to other server using telnet, and after some time my
device dis-associates from AP and kernel message shows "No probe
response from AP, after 500ms, disconnect". My wpa_supplicant is
running in the backgroud but still it couldnt able to associate again.
If I kill the supplicant and run it again, things are working fine and
this time it is not disconnecting for long time..

I havent faced this issue with other wireless card based on rt73usb driver.

Is this known issue and is there any patch available?

Thanks