Installed 17.1.0 driver couple of days ago. Every time my laptop comes out of sleep the wifi adapter is not present in Network &Sharing center. I have to go to device manager where the adapter has a yellow sign saying it doesn't work correctly and windows disabled it. If I enable the device, it works fine until the next time it goes to sleep.
Reverting back to 17.0.6 driver fixed the problem.
Lenovo U430 Touch, Win 8.1, 7260 Wireless-N