I am using this usb wifi adapter, it uses zd1211rw and it works fine if I connect it directly to the usb port, but if I add a cable (around 5mts) between the usb port and the usb plug, the device doesn’t appear (I used iwconfig to check). The green light on the wifi adapter turns on but it doesn’t blink like it does when connecting it directly without the cable.
What could be happening?
I use the same cable + usb wifi adapter in windows, and it works fine, I can scan and connect without problems.
When I use the cable, lsusb doesn’t show the device neither, it does when connecting the adapter directly.
On 06/04/2010 07:06 PM, trogster wrote:
>
> I am using ‘this’
> (http://volteck.net/wp-content/uploads/2010/01/UGL2454-U2ZA600.jpg) usb
> wifi adapter, it uses zd1211rw and it works fine if I connect it
> directly to the usb port, but if I add a cable (around 5mts) between the
> usb port and the usb plug, the device doesn’t appear (I used iwconfig to
> check). The green light on the wifi adapter turns on but it doesn’t
> blink like it does when connecting it directly without the cable.
>
> What could be happening?
>
> I use the same cable + usb wifi adapter in windows, and it works fine,
> I can scan and connect without problems.
>
> When I use the cable, lsusb doesn’t show the device neither, it does
> when connecting the adapter directly.
This could be a timing problem or a voltage drop in the cable. You can
test by plugging a powered hub into the cable with the USB stick plugged
directly into the hub. An unpowered hub is unlikely to make any
difference. When lsusb does not show the device, it is not being
recognized by the system. It is as if it is unplugged.
Thanks, I will try to get an powered hub to try that.
