I have an acer aspire 6920g laptop.
A few weeks ago decided to update to win 8.1
Since the updated I randomly received a system error message 'Your system noticed a problem and will restart :driver irql not less or equal (netwlv64.sys)'
I searched on the net and find out that my wireless card is probably not supported on win 8.1 (intel 4965AGN), so I bought an intel 7260ac.
When I installed it in and tthe windows was alive I wasn't able to tun on the card. what I mean that the option was greyed out in the network selection side menu(so no chance to switch it)and the test said that my wireless card is off. I have a physical button to turn on/off wireless conections. I tried to reinstall the windows but same result.
I'm out of ideas... if anyone can help me it would be more than welcomed.
I understand that the WiFi radio will not turn on after installing the Intel® Dual Band Wireless-AC 7260.
Some system manufacturers provide a software switch besides the hardware switch you already know. I suggest you checking with the manufacturer if your model requires any other software tool or relevant (BIOS) updates.
There are a few things to consider when installing or upgrading a half mini PCI Express wireless adapter:
You may also contact your http://www.intel.com/support/oems.htm system manufacturer in order to obtain a list of validated wireless adapter models that are compatible with your system.
http://www.intel.com/support/wireless/sb/CS-006192.htm Wireless Networking; Installation error when installing or swapping Intel wireless adapters
http://www.intel.com/support/wireless/wlan/sb/CS-011644.htm Intel� Wi-Fi Products; Regulatory information regarding hardware installation or upgrade
http://www.intel.com/support/wireless/wlan/sb/CS-031641.htm Intel� Wi-Fi Products; Which operating systems are supported by Intel Wireless Products?