My take on that is that they are ruling out the top Band A frequencies to avoid overlapping with Band B, and for some reason don't want to use Band B. Possibly to do with the power level. Cutting out half the Band A channels does however seem a little drastic.
Most people here are only looking at N66U at 5 GHz. On 2.4GHz there is not sufficient spectrum free in most built up areas for many people to run "dual channel" mode (40mhz). At 5GHz there is generally space, unless you live in flats and have two 5GHz routers side by side through a wall (yes, I've seen this).
I have the AC68U which is where the industry is heading, as AC WiFi uses many more mhz, bonding 4 or more channels to get 900megabit or higher theoretical speeds.
My parents have the N66U and running wl -i eth2 channels shows 36 40 44 48 running Merlin's software, with the wl country command returning "EU (EU/5) <unknown>"
My AC68U is different, and the same commands show 36 40 44 48 52 56 60 64 100 104 108 112 116 132 136 140 and "DE (EU/13) GERMANY"
Yes, these devices are running Merlin's version, but the wireless stuff didn't change. Merlin in fact exposes a setting in the web interface on my AC68U and I think on the N66U on the professional tab to set the regulatory domain, mine is 80211d+h and I'm pretty sure all my settings are factory defaults.
- plusnet unlimited fibre
- 2 Jun 14 - 470m - Sync 55/9.4 (BT was 51/9.8)
15 years broadband (1999 ntl:cable trial) - Asus RT-AC68U with HG612 - PN BQM - PN speed - old BT speed