I have a laptop Lenovo X240 with wifi Intel Dual Band Wireless-N 7260 card.
It happens to connect to my freebox only 802.11g, not 802.11n.
I have other peripherals wifi coming 802.11n has to be logged in.
I installed the latest driver (18.32).
I uninstalled the drivers for the network card and selected delete drivers. Then I let Windows 10 Update install/update the drivers
Thanks to this post :