i have been UNIFI user since last month. changing from steamyx that always no line in my area(somehow the streamyx is crap in my place). i use the default dir 655 router that tm provide to me.

by using this router whenever i on iptv and playing game at the same time my wifi connection somehow will drop and i will lost connection. it happens when iptv is on only.

i use the tp link wr 1043nd and change it into openwrt for my unifi. the speed was stable. the wifi never drop at all..

more importantly i use the usb fan cooler and placing under the router and BTU and both device running cooled without any problem. its been 1 week without any disconnection and also the speed stable raging from 4.78MB to 5.01MB upload and download with ping not more than 10ms into local server(malaysia).

  i suggesting that using TP link with openwrt is a great combination as it will cater problem with default unifi router.

so @blu3skyr4in, use third party router link tp link as it cost me rm155 only. the BTU will not be a problem as the router will make the internet job etc etc.
and also for another d link 655 router, you will need to set it up so that it can use to for internet on VLAN500 and also VLAN600 for iptv. i dont think BTU lock the router where you cant use other router because me and some of our friend using third party router that works with unifi.