Background Back when I got my GL-AR150 mini router, I was blown away by the powerful capabilities of this $25 OpenWRT router,...
YouTube videos playing at 360p only on Windows 10 with FirefoxStanislav Khromov
It seems Windows 10N does not bundle the H.264 library required to play high definition content on YouTube by default.
If you go to the YouTube HTML5 Video Test Page it probably look something like this:
The solution is to install KB3010081, which you can do at this link: