Keep us posted....
Can play CoD:Ghosts on Wifi without crashing the router and so far there have been no disconnects (which happen on 1.11) after a day of use. Will keep looking out for the disconnects, but so far my girlfriend's iPad and MBP have not disconnected and neither has the thermostat which was being disconnected at least once a day (the router now says the thermostat type is 'Playstation 4' when it used to say 'Nest', though).
I noticed one thing with testing the settings with my iPad 2. If I connect the iPad 2 to the 5Ghz band and then open Safari and go to any page (cache was cleared) and the progress bar moves and eventually stops after maybe 10% and sits there until it eventually times out.
One time I left it like that and then made a change to the router which then went through the countdown. When the countdown got around half way done (about the time that I'm assuming the Wifi reinitializes with the new settings as that's when everything loses their wifi connection) the loading in the browser stopped and displayed the title, various boxes that match where pictures should be (or at least the divs the pictures are supposed to be in), and some miscellaneous text. So it does try to load the page and then just dies. Thought that was interesting.