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Full settings you should have set this way (if need some reference infos can check here Advanced Intel Wireless Adapter Settings) :

802.11a/b/g Wireless Mode : 4. 2.4 GHz 802.11b/g
802.11n/ac...

You have to change both read what I posted earlier first one should be set to : 4. 2.4 GHz 802.11b/g

Don't forget to check previous settings I posted earlier too.

Yes looks great just intall last driver I linked earlier and normally you should get 2 Wireless mode settings in Windows.

If you have only 1 setting like this in the router it's fine (because can...

On the router not on Windows :D At least this one "Wireless Mode" is set well" on choice 6.
Need the Wifi standard set in the router for frequencies at 2.4 GHz and 5 GHz.

Did you install the...

On last picture you should click on Wi-Fi, need the connection Type 802.11 with letters after like 802.11a/b and try broadband too.
Everything about WI-FI . Don't need the 2 first screenshoots you...

Login into your router and check wifi settings where you can see the band frequencies and take a screenshoot and post it here.
I got same troubles long time ago until understand that the settings...

Check that in device manager you have the right settings with the router you are using and disable power management there too.