Just a heads up, since this is where google points you when searching for answers why your laptop's wifi randomly stopped working
Intel has FINALLY released drivers for Ultimate-N 6300 on Windows 10, in late February 2017. So ignore any posts here on the topic before that.
There was some weird problem with the 19.20.0-19.31.x series drivers particularly with Ivy Bridge (2012) era laptops (Thinkpad)
Download 19.40.0 or higher. This link may or may not work.
Download Intel® PROSet/Wireless Software and Drivers for Windows® 10