Can somebody guide me or explain if there is any easy way of changing the locale for Asus RT-AC87U? The router is purchased from the UK and came with EU locale. The signal coverage is worst than on my RT-N18U (2.4Ghz) which is not what I expected from a router that cost 3 times more. I'm running 376_2769 atm. I would like to change it to GB. Thanks!