When I first got the Dell Laptop XPS 15 Touch (windows 8.1 - 64) I was able to log onto my AC/N network.
It stopped working on ac/n. I updated to the latest drivers here and it will still only log onto the a/b/g side of the router.
This is not a router problem since I can log onto AC/N with other computers.
In the advanced configuration for the Intel(R) Dual Band Wireless-AC 7260 under wireless mode it does not list the ac/n. It only shows a/b/g.
What is going on. How do I re-enable ac/n? Help is much appreciated.