Wifi from the phone does not work well, from the computer everything is fine, what could be the problem?

Question

JavaScript

In general, I don’t know what happened, everything was perfect, but the other day wifi started working badly from phones. iPhone 5, iPhone 6 and iPad have the same problems, speedtest does not start on all, more precisely, it does not find a server to check the speed, it does not even go to the speedtest.net page from the browser, but some pages load instantly, some do not load at all, when everything works with other devices, everything is perfect with macbook and explay fresh, on macbook the speed is ~ 100Mbps, ping 5-20.
The network is arranged as follows: optics enter the apartment using Turbo GPON technology, like this Eltex NTE-RG-1402G-W:rev.B, then it goes to one part of the apartment on dir -320 and another one on the apple timecapsule, they work in bridge mode (LAN) and distribute wifi, Eltex distributes addresses, the picture is the same everywhere ... I didn’t update anything, I didn’t change any settings anywhere ...
I don’t even know which way to dig ...
Maybe someone will tell you which way to dig. ..

Answer 1

1. what does yii have to do with it? The question is completely in the context of js.
2. in what file and in what place is the error this.dropdownEl is null;?
3. I'll try to povang. You don't have an element with id equal to "search", check like this:

$(function () {
    var myEl = $('#search');
    console.log(myEl.length);
});

Answer 2

try changing the channel. maybe a neighbor appeared behind the wall with wifi on your channel, so the phones got worse and worse.

Answer 3

Well, as bee dir320 on bcm4330 (and similar 43 **) has never been smart and quick-witted. Apple technology, except for macbooks, of course, corny lacks sensitivity for it. It turns out that when there is communication with a poppy, the power of the path drops and the link with the phone / tablet falls off. This is a fairly common problem. You can try to put a static value for outgoing power, or just raise it. At worst, this mammoth turd is sewn in OpenWRT, and there it will probably be possible to increase the power, well, if you pick the antenna path a little with a soldering iron, you can also add a little dbm...