Wifi speed on macbook slow?

Question

WiFi

Welcome all. Before that, there was an ASUS RT-N56U router - the speed was good. Not so long ago I changed to mikrotik - the wifi speed of the macbook dropped. Other devices work well.
Initial data:
Router: MikroTik RB951G-2HnD
Laptop: Apple MacBook Pro 13 (Early 2011)
Smartphone: Xiaomi Mi4c

Made measurements at the same place on the smartphone and laptop. Here is the result of the MacBook:

Here is the smartphone:

And here is from WinBox:


Judging by the data, the laptop catches the wifi signal better. But I don’t think that a laptop has a worse antenna than a smartphone.

Wifi configured with capsman



Where could be the problem? Or is that how it should be?
PS: The router is a maximum of 10 meters from the test site (through 2 concrete walls).

Answer 1

The signal level is -70 decibels, which is very bad.
Try, on the router, to force 802.11n, instead of legacy. Fallback to older protocol versions is common.

Answer 2

1. Why is your channel-width 20Mhz and not 40Mhz ???
2. Start with the most primitive. Scan the range (Freq.Usage) and see what channels your neighbors are on. Choose a less busy channel. Manual:Spectral scan
3. You need to configure via Winbox - "Wireless" and press the " Advanced Mode " button and start smoking manuals ( 1 , 2 ). By iterating through the settings, you will grab something. Measurements are best done with built-in BTest .
This is exactly what you need to enable - WMM support - "enabled".
As an option, try to boost the signal to 1W, but sometimes this leads to the opposite effect.
wireless-tx-power=27 tx-power-mode= card-rates
It has long been known that APPLE products and Wi-Fi are somehow incompatible. This is a proven fact. Even their Wi-Fi points in some cases are not childishly buggy. In one case known to me, these problems were just partially solved by replacing the APPLE access point with ASUS and selecting the optimal firmware from Merlin.