@invalid_network
The article contains this:
Our starting assumption is that you began with one of the Quick Set Home AP configurations2, where you set up the basics like your country’s channel allocation rules, the SSID, WiFi Passphrase, and so forth. We’re going to use the default MikroTik network 192.168.88.0/24 for the private LAN and relegate guests to a new 192.168.99.0/24 network.
So you should:
- reset the device to default configuration
- use the AP Quickset ONLY ONCE[1]
- follow the steps in the article EXACTLY AS THEY ARE
If you do that, you will likely find yourself with a working setup (that can later be tweaked/tuned/customized), if you introduce even a single, tiny change to the steps detailed in the article you will instead find yourself with a non-working mish-mash that will likely be very hard to troubleshoot and correct.
This said, in Mikrotik's world a wi-fi interface is considered "not running" until/unless there is at least one client connected to it.
The check can be disabled (only when really-really needed) though. ( disable-running-check):
Is there a way to have slave interfaces running when the master is disconnected but enabled? - #4 by holvoetn
[1] Compare with Rule #4 of the Mikrotik Club:
The twelve Rules of Mikrotik Club