On Feb 14, 3:42*pm, johnx...@gmail.com wrote:
> Hello,
>
> My 2 years old PC is installed with Windows XP SP2 and it has several
> USP interfaces. Everything works fine except one problem with the USB
> interface that I cannot fix for long time.
>
> I am using one of the USB interface for the wireless connection to my
> cable modem for internet access. It works fine if I do nothing with
> other USB interface. But wireless connection will be gone if I unplug
> any devices from other USB interface. I have to unplug the wireless
> modem and replug it back to the USB to get it work again. I have tried
> many things with no luck so far. I appreciate it if you can give me
> any help. Thanks.
>
> John

I had the "exact" problem with my USB wireless! Double check the USB
ports so as the see which controller chips it uses. I had a ALi based
USB ports which were constantly loosing my wireless acess. ALi (Acer
Labs) seems to be "known" for USB port problems since a lot of USB
device vendors port "work arounds" for these chips. I was luck to be
able to replace the ALi ports with a NEC based controller and all is
well since.