I have a Dell Vostro 5470 with an Intel Wireless-N 7260, and it regularly kills my home Wi-Fi for everyone connected, and the only way to solve is rebooting the router.
It also doesn't work when I plug an HDMI device. The internet goes unusable and only works when I unplug the HDMI.
How can I solve this? I'm using Windows 10 build 10162 now, but it happens on Linux Mint, Ubuntu, Windows 8 and 8.1 OEM.
My router is an TP-Link WR941ND revision 5.
This Wi-Fi chip also has some connectivity issues, but I managed to solved it using some other workarounds.