Hello There, thank you for this forum to carry on the brainstorming the ideas. Okay, Here is the query I have Currently, I am using Archer C6 V3 MIMO router Where I have initially purchased to use as a router for my FTTH connection.

Since the router is recent version and four antennas I thought this router could offer me huge range( I need 80 Meters to cover my WIFI signal straight line) but later I realized the there are few trees and two walls in between the WiFi reception that made the wifi signal to un penetrate the hindrance. 

So I am planning to buy this router "TP-Link TL-WR941HP 450Mbps High-Power Wireless Router" to cover this distance, Do you guys think replacing my current router with this 9dBI antennes will solve my purpose?