HI
Qualcomm Atheros QCA9886 802.11acn radio needs 2 ssids to work properly . No more problems with "Device not active" Just go reboot after changes . Eventually you can set country code to ''world" 00.
And its done fully working router 
That doesn't really make sense (and certainly isn't necessary on my very similar map-ac2200); the world regulatory domain is never a good idea either - you really need to set your local regdom there, both for best performance and legal operation of your device.
I just put my experience ,that changgnig regulatory domain is chelping . But only making 2 ssiidsd make differense . Sory for inconvinience