Good day, fellow Mikrotik users !

I have 951Ui-2HnD router and my Wi-Fi is working pretty bad. For example android tablet connecting from far room cannot even play Youtube videos properly, my Mac located in few meters (behind the concrete wall) hardly allows me to participate in zoom video calls. If another laptop connected from 3rd room have audio call my connection becomes really terrible.

I'm not that good at configuring routers so i assume im doing something terribly wrong since i've expected this device to be able to provide more or less stable wi-fi connection. Can you kindly help me to deal with the settings please?

28+ WiFi networks on 2,4GHz. Are you suprised? Can you imagine 28 speakers in one room playing different music?

28+ WiFi networks on 2,4GHz. Are you suprised? Can you imagine 28 speakers in one room playing different music?

I understand that.. However what can i do with such situation? I cannot just sell my aparts because of this ))

I recommend using Band 2Ghz-G/N to lower the channel width to 20mhz
try channels 2412, 2437, 2472 and choose the one that works best.
If you still don't get decent results, and in very rare cases, use superchannel for extra power (Bad habits, sorry).
It is a very basic router and it will be very difficult to compete with the noise.

I recommend using Band 2Ghz-G/N to lower the channel width to 20mhz
try channels 2412, 2437, 2472 and choose the one that works best.
If you still don't get decent results, and in very rare cases, use superchannel for extra power (Bad habits, sorry).
It is a very basic router and it will be very difficult to compete with the noise.

Thank you very much. Can you advice routers that might work in such noisy environment?

This will be difficult for every 2.4GHz router. This spectrum is crowded, and channels not under your control overlap. Quite some try to use 40MHz wide channel (20-Ce, 20-eC) what makes it worse.

Basic rule is to co-exist in 20 MHz wide channels 1,6 or 11 (2412,2437,2462) and have no overlap. The neighbors don't allow this.
So mitigation actions are required.

Tuning requires so much feedback, that it is impossible to give a step-by-step guideline.
Some possible actions are, (results to be checked)
1: Move away from 2.4GHz. The 5 GHz band normally is much cleaner and has more channels to share. Requires different 2-band router (hAP ac, hAP ac2, hAP ac3, ... and many more)
2: As @enlace101 said: stop using b-protocol (use g/n) , and only 20 MHz wide (no Ce, eC or XX) (Band and Channel width)
2: Reduce noise sensitivity (parameter under advanced: Adaptive noise immunity)
4: The top-5 in "scan" are the killing AP's. -44dBm must be closeby or under your control. Item 1,3,4,5 are wide channel. 2 is on channel 13 and smaller. Those AP's destroy each others transmissions due to wide channels. They could have used 2412/20, 2437/20, 2462/20 as 3 independent non-interfering channels.

Less specific actions , when desperate ...
5. For coexistence with neighbors use in Advanced tab: HW protection mode = "CTS to self".
6. To avoid destructive interference, lower the packet size: AMSDU limit = 2048 , AMSDU Threshold = 2048. Or even test a lower value. But this will slow down the transmission as well.

Feedback information is in the registration table for each connection (detailed view or extra columns added) : CCQ, TX/RX Frames <versus> TX/RX HW Frames ratio (learns about retransmits)

This will be difficult for every 2.4GHz router....

Thank you very much for your help! Can you please clarify what "Reduce noise sensitivity" means? I have Adaptive noise immunity set to "Ap and client mode" by default

Not much information: https://wiki.mikrotik.com/wiki/Manual:W ... setting.3F


This presentation is interesting to me, it is a lot about long PtP links, but still informative for the home AP: https://mum.mikrotik.com/presentations/ ... 737579.pdf
In some older devices it is still possible to set the "noise floor" !