Re: ath9k/AR9285 - incompatibility with bluetooth

["Alberto José Rodríguez Rodríguez" <ajrodriguez@blulabs.es>]

Thanks for your response. I made this question because
while this device loses the connection, on my laptop, with the same
bluetooth device, the connection is not affected.



 03:00.0 Network controller: Intel Corporation Wireless WiFi Link 5100


El jue, 14-01-2010 a las 10:02 -0800, Dan Williams escribió:
> On Thu, 2010-01-14 at 18:49 +0000, Alberto José Rodríguez Rodríguez
> wrote:
> > Hellow,
> > 	I have a ZOTAC MAG ION and I'm having problems with wireless
> > connections
> > 
> > Distribution: Ubuntu 9.10
> > Kernel version: 2.6.31-16
> > Device: 04:00.0 Network controller: Atheros Communications Inc. AR9285 Wireless Network Adapter (PCI-Express) (rev 01)
> > Problem Description:
> >     - Low signal strength
> >     - Cannot connect to wireless networks
> > Using linux-backports-modules-karmic:
> >     - Low signal strength persists
> >     - Can connect to WPA networks but signal strengh is low and unstable, also when using at the same time a Bluetooth USB dongle (continuously inquiring) the wireless connection is lost.
> >     - Cannot connect to WEP networks, although the WEP key is set correctly and the device is associated to the AP
> > Using latest linux-wireless snapshot (20100113):
> >     - Can connect to WEP networks but when I use at the same time a Bluetooth USB dongle (continuously inquiring) the speed of the wireless connection becomes very slow.
> >     - Can connect to WPA networks but when I use at the same time a Bluetooth USB dongle (continuously inquiring) the wireless connection is lost.
> 
> This isn't unexpected; Bluetooth and WiFi interfere with each other
> because they both use 2.4GHz.  So don't expect great performance out of
> either BT or WiFi when you're using both at the same time.  Many
> built-in chips have BT co-existence capability, but that only works if
> both the WiFi and BT chips are built into your computer and are wired up
> to talk to each other.  External USB BT or WiFi dongles almost certainly
> will not have working coexistence support.
> 
> Dan
> 
> 
-- 
Alberto José Rodríguez Rodríguez <ajrodriguez@blulabs.es>
BluLabs, S.L.