2.4 disappearing

Hi, Out of the blue, the 2.4 Ghz network on my AC86U is dead. I can't be found by ANY device. The router thinks is active, but it is definitely not. It's not hidden. I tried: - Rebotting - Toggling Smart Connect (I don't use it) - Toggle WiFi from the Android app - Change WiFi name or Password...

RT-AC68U with Merlin 386.2_4. The issue starts appearing two or more builds earlier and still exists. I have two SSID configured on router: Name-2.4 and Name-5.0 for 2.4 and 5.0 GHz correspondingly. It is normal 2.0 becomes better with more walls in my house so my devices switch from 5.0 to 2.4...

Hello all. I have an Asus Blue Cave AC2600 that I am running on the firmware 2 before most recent - per this thread about that topic: https://www.snbforums.com/threads/issues-with-latest-blue-cave-firmware.62959/ All has been fine since and I've added more Hue lights, a Kasa dimmer switch, etc...