Satellite Pro is A200-16YT (PSAE1E) with Windows XP Professional SP3.
I have been trying to increase my existing 54 Mb/s wireless network speed by replacing the existing Atheros AR5007-EG 802.11a/b/g with the faster 802.11n adapter.
The Atheros driver is v188.8.131.529 (04/08/2011) which I believe is the latest. I have tried to install an Azurewave AR5BXB72 (Atheros AR5008) as a replacement, but with no success. As well as trying the standard Windows Wireless set-up, I have used the Atheros Client Utility (ACU) which confirms that the card and driver are installed and enabled, but the radio does not switch on, so no there is no association/connection with any wireless network!
Reinstalling the original AR5007 works without any problems. If anyone has experienced similar problems and/or can offer a solution, it would be greatly appreciated. Thanks
I followed the link you posted and you were correct in suggesting that a WLAN card pin assignment was an issue.
On older cards, (before Revision 1.2 of the PCI Express Mini Card Electromechanical Specification), Pin 20 was 'reserved for future wireless disable signal (if needed)', so presumably on my Toshiba Satellite A200, disabling the old AR2007 card was handled by the system software and the Wireless ON/OFF switch.
On the newer adapter cards, Pin 20 is assigned to a W_DISABLE# signal which, when low, will disable the radio.
As suggested by other posts, masking Pin 20 on the AR5008 card has prevented the radio from being disabled, and the only small problem with this is the radio can no longer be switched off with the Wireless ON/OFF switch (or with Function+F8).
However, the wireless speed is now 144.4Mbps, enabling BT Infinity broadband download speeds in excess of 30Mbps.