Hi guys, does asus ac1200 has adaptive qos? TQ.

Alright. Thank for your help.

What do you mean by not working? No internet connection or the ports are not active?

Consider that the limitation on the client side. Different WiFi network cards have different theoretical speed. Like 2.4Ghz N150Mbps, 2.4Ghz N300Mbps and etc.

Also, signal noise from microwave, mobile phone carrier signals, wireless Bluetooth and etc can also cause congestion of the signal bandwidth. For easier understanding, just imagine that there are a lot of "cars" using the" highway" of the 2.4Ghz, the speed of the "cars" would definitely be slowed down even though that the "cars" are theoretically able to run at 150Mbps, 300Mbps, 450Mbps or etc.

The interference of all these signals like Bluetooth and WiFi, microwave and etc would cause a lot of signal noises, thus in degrading the quality of your connection on 2.4Ghz as well. You could imagine this as keeping you in a "room" for just 2.4Ghz "people" and everyone are talking in the same "room" and imagine that "Router A" is talking to you over a distance, it would definitely make you very hard to hear the sentences when "Router A" speaks.

Consider only these three factors it's already enough for you to understand why you can't get full speed on 2.4Ghz even though they are advertised so.

The reason why 5Ghz wifi can reach higher speed because 5Ghz wifi has higher bandwidth, just like more "lanes" on the "highway". And also, currently there are very little devices are using 5Ghz spectrum. Bluetooth, microwave which was mentioned earlier are not on 5Ghz spectrum. So that's why, it has less signal noise or interferences also. Moreover, 5Ghz WiFi on the client side are advertised at much higher theoretical speed. Means that the "cars" are capable of running at much higher speed, like 866Mbps and higher.

Thus in conclude that the reasons of why 5Ghz are seemingly to be more possible to reach speeds like 200Mbps but not 2.4Ghz WiFi in the real world.

Hope my best try of explanations can make you understand better. Feel free to ask me anymore questions if you have any other doubts.

This post has been edited by mztang52: Nov 20 2019, 11:02 PM

Oh no bro. Hope you too would like my explanation. Not sure if it is simple enough for anyone to understand the factors.

If bought in China need to send to China for RMA. But what's the problem with your Asus router?

Which model of router are you using? RT-AC68U?? Do you have such problem previously? Or is it a newly bought router? Have you tried to give it a Factory Reset?

I am interested to buy over your faulty Ac86u for my own experiment purpose. Do you still need it? Or else I think I might able to buy and play around with it. But I have limited budget also.. 😅

This post has been edited by mztang52: Jan 22 2020, 04:06 PM

I think it's firmware issue. Have you tried to contact Asus for a RMA unit?

Can I know if i should enable airtime fairness, MU-MIMO&OCDMA on my AX3000? Because there were disabled by default.