One of the two WiFi interfaces is not working

RouterOS Beginner Basics
1

I have a cAP ac with RouterOS 7.13 (+ wifi-qcom-ac-7.13-arm) and one of the wifi interface will not enable. I have issued commands to enable the wifi interface, yet it remains disabled.

I have two states:

  1. wifi1 is designated port and wifi2 is disabled port
  2. wifi1 is disabled port and wifi2 is designated port

wifi1 - 2.4 Ghz
wifi2 - 5 Ghz (with Dynamic Frequency Selection)

Any suggestions to run both wifi interfaces in parallel?

2

Hi, the print you sent is from Bridge, send us the print of the wlan2 configuration;
The interface will only be active (running) when a device is connected to 5Ghz WiFi.

3

Since the frequency selection is auto worth, there is probably a DFS check going on, which takes 10 min. Open the interface and see its status in the bottom line.

4 
/interface/wifi/export
5

WiFi configuration:

[admin@AirMan-1] /interface/wifi> export
# 2023-12-26 21:26:02 by RouterOS 7.13
# software id = M3R7-SGT3
#
# model = RBcAPGi-5acD2nD
# serial number = DD340E2A128B
/interface wifi security
add authentication-types=wpa2-psk,wpa3-psk disabled=no name=sec1
/interface wifi configuration
add country=Poland disabled=no hide-ssid=yes mode=ap name=WiFi-2.4Ghz security=sec1 ssid=Manekin
add country=Poland disabled=no hide-ssid=yes mode=ap name=WiFi-5Ghz security=sec1 ssid=Manekin
/interface wifi
set [ find default-name=wifi1 ] configuration=WiFi-2.4Ghz configuration.mode=ap disabled=no
set [ find default-name=wifi2 ] configuration=WiFi-5Ghz configuration.mode=ap disabled=no

6

Your last screenshot shows, that both interfaces are running.

7

I didn’t change anything in the configuration and it started working.
Except now it doesn’t show that a DFS channel is available.

8

That’s the beauty of allowing AP to autoselect frequency channel … you never know which one it will be. Could be a non-DFS and it starts to transmit immediately or it could be a 10-minute-DFS channel and you get old waiting for it to appear on air.