Tools, tools for diagnosing wifi in the office?

Question

WiFi

In general, can anyone advise either to study resources or tools for diagnosing and troubleshooting problems with wireless networks. Because the network, in my opinion, does not work properly, often wi-fi simply starts not to work.
PS All sorts of things about putting channels 1-6-11 or putting 5Ghz can be omitted.
Who uses what devices, does anyone have experience setting up wi-fi in an office of more than 100 people, what equipment does anyone use.

Answer 1

Repeatedly wrote that Mikrotik and Ubiquiti simply fall off on 25-50 clients. That is, if this is a conference room for 100 people, then prepare money in barrels for CISCO or, at worst, D-LINK.
If this is scattered over a large area, then perhaps the option with Ubiquiti will burn out.
I strongly advise you to contact a specialized company that deals with just such solutions . Yes, you will overpay a little, but they will give you everything ready right away, and if there are problems, they can change the equipment to a more powerful one.
For now, this is the ideal solution for me:
How wi-fi works in Terminal 42
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Wifi Analyzer

Answer 2

Not bad analyzes Android with utilities. I don’t remember the names of the utilities, but they are easy to google.
On Wi-Fi - seamless Wi-Fi has already been discussed many times, actually Mikrotik and Ubiquiti from the budget ones.
In general, the task is to arrange points and capacities on them so that they overlap each other as little as possible.

Answer 3

inSSIDer version 2.1