WIFI EXTENDER ETHERNET

A couple things to go over. 

Standard extenders by their very nature drop throughput by 50% of what they're receiving (not tribande extenders). Reason why is they have to receive and then retransmit data. And they can't do both at once. So even if you place it right next to the router that you get 700mbps from, the best you'd expect would be half that. But the EX6120 can't do that as its a 866mpbs link speed and thats link speed, not throughput. Throughput is roughly 55-65% of link speed due to network overhead.  Plus start adding in moving an extender further away from the router and obstructions due to distance, and your speed is going to drop off even more because its cutting the 50% based off what actual speed its getting from where its located. 

so to go over.

1. extenders cut speed 50% of what the extender recieves

2. link speed isn't the same as throughput speed. Max link speed on ex6120 is 866mbps. 

3. distance/obstruction causes slowdowns as well 

the caveate to that is the triband extenders. They have a 2nd 5ghz chip just for router---extender communication. so they don't take the same 50% speed hit. But they're dedicated 5ghz. 5ghz by its very nature doesn't transmit as far or through as much materials as 2.4ghz. But its much faster than 2.4ghz. By a significant margin. 

Extenders are great devices if there is dead areas or areas that just need a little extra reach. They aren't full mesh networks (even the mesh extenders) and aren't going to give you fast speeds. But they will cover dead spots or extend reach.