@Otopina Honestly - to do HA properly, you will need to look at vendors that sell at a higher cost.

@Otopina AFIK the routers cant be ran in HA.

@shuai There is no license for that router. Per the DS: • Management up to 1 Router, 2 Switches and 10 EAPs

@vivetech Download Acrylic Free Wifi Scanner: ( acrylicwifi dot com /en/wifi-scanner ) Fire up an AP with a test SSID. Put it on a cart with a UPS. Pick certain a spot where to start, keep the cart...

@vivetech To me either way you will get signal... thats the #1 concern. Getting good signal regardless of the type of AP. I like IN-Walls my self, but sometimes you will have to utilize both. I would...

@Remy4409 To get 1G on UP and Down over a VPN... you will need a device with more horsepower. What you are getting is pretty dang good.