but now, I am highly dissapointed that high-class router RT-AC5300 is constantly beaten by low or middle-class Rt-AC86..maybe it is a time to say 'good bye' to 5300 and buy something like RT-AC86?
The RT-AC5300 primary function is to add a third wifi interface. The RT-AC86U is one year newer, on a completely new architecture. It only has two wifi radios, its 2.4 GHz radio is only three-stream versus the RT-AC5300`s four-stream, so we can't say that one is globally better than the other - they just have different features. The RT-AC5300 is better for wifi, but the RT-AC86U is better for CPU-intensive tasks.