I know that there are already a lot of threads about the problems with this card.
I've trawled through most of them and tried just about everything that has been recommended.
However, in my quest for a solution, I noticed something that I have not seen mentioned before.
Generally, during the trial of all the suggested resolutions on my Windows 8.1 setup I either get wireless with no bluetooth, bluetooth with no wireless or neither.
In general though, the option to turn wireless on is grayed out in Windows and I know that it is not an issue with either hardware or software on/off switch because if I plug in a USB wireless dongle, it works perfectly well.
When booting though, as windows first starts and proceeds to load all the background processes, the wireless is turned on and if I am quick enough, I can even see my network detected and even enter the router password.
As background processes continue to load though, everything then gets turned off.
This leads me to believe that perhaps there is a conflict with another piece of software, although nothing in the event log leads to any conclusions.
Now I could try and go through all the startup processes and services to find what it may be but that might take too long, so I wondered if there was any way to obtain a list of the processes in the very order that they are started in windows.
That way, I could then narrow down the list to only those processes and services that start after the wifi for the AC 7260.
One of the other suggestions that I have seen for some users is a BIOS upgrade.
I am on a latest BIOS for my machine but have now installed a fully unlocked version with dozens of additional options, many of which don;t make any sense but perhaps there are specific areas in the BIOS that I could enable/disable/modify that might aid.
One last thing that does puzzle me too.
In the advanced settings in windows for the card, in the Wireless Mode section, there are only 6 options, the most comprehensive stating 6. 802.11a/b/g, where I would also expect to see n and perhaps ac (never used ac before, so don't know).
I've never come across a piece of hardware that seems to have so many issues.