I tried the different channels and it doesn't work

@Stella.Q Internet is working on my phone when I connect it on other wifi network. For your information, my wife's phone doesn't get internet with the Tp link too. There are many pages with...

Hi everybody, I have an MR6400 modem and I can't have an internet access trough it with my mobiles phones. The MR6400 provide me an Internet acess with 4G. If I connect a computer with the Wifi and...