The leader in latency
One last point on performance (and I really can't stress this enough) -- the RT-AX86U is just flat-out fantastic at handling latency, and easily the best router I've ever tested when it comes to lag.
Each of these graphs show you how much lag I recorded across 90 speed tests for a single router. Routers that keep the colored line closer to the center of the graph are better -- and the RT-AX86U (purple) is the best I've ever tested.
Ry Crist/CNET
Lag,
or ping, is a measurement of how long, in milliseconds, it takes your router to send a signal to a specific server and receive an answer. In my speed tests here at home, I always ping the same server in Lexington, Kentucky, about 80 miles away, and I record the ping time for each and every test. Each router I review goes through a minimum of 90 speeds tests, so that adds up a lot of data on lag.
Now check out those radar graphs. Each one shows the lag results of those 90 speed tests for a single router. The colored circle graphs each one's ping time across those tests. Spikes represent tests where the lag was unusually high, so the closer each line stays to the center, the better.
Just about every router will see occasional spikes at some point in my tests -- but not the RT-AX86U. It never, ever registered a lag time any higher than 20 ms, which is why the purple line representing its lag results looks like such a tight ring around the bullseye.