ASUS RT-BE92U Firmware version 3.0.0.6.102_38979 (2025/10/31)

[2600]

Can you share the Ethernet Backhaul Mode setting you have? Mine was enabled when it bricked.





I have the same configuration with hardware version 1.0 on both routers. My main router has the 2.4 channel off, while the mesh router has all the 2.4 devices. I think I have Wi-Fi fairness turned on for the 2.4 band. I did a complete factory reset and pushed the button on the back of both routers. Everything’s working fine as far as conductivity, but the one router’s 2.4 band is off.

My setup is:

AiProtection = OFF
MLO = On
Smart Connect = ON
IoT SSID = On
DNS = Control D
QoS = OFF
AiMesh = On, connected to another BE92U

View attachment 68763

SmartConnectOn: My main network has one password. Guest network_IoT has another password. Could this be causing issues with the 2.4 band dropping? Do you think I made a mistake by implementing two passwords? I really appreciate the information that you've shared and also the video of the setup.

 

[2600]

I have a ethernet wired backhaul. Under AI Mesh System Settings, I turned on Ethernet Backhaul Mode.

 

[Spartan]

Can you share the Ethernet Backhaul Mode setting you have? Mine was enabled when it bricked.





I have the same configuration with hardware version 1.0 on both routers. My main router has the 2.4 channel off, while the mesh router has all the 2.4 devices. I think I have Wi-Fi fairness turned on for the 2.4 band. I did a complete factory reset and pushed the button on the back of both routers. Everything’s working fine as far as conductivity, but the one router’s 2.4 band is off.

SmartConnectOn: My main network has one password. Guest network_IoT has another password. Could this be causing issues with the 2.4 band dropping? Do you think I made a mistake by implementing two passwords? I really appreciate the information that you've shared and also the video of the setup.

I use the same password for the main network and the IoT

 

[jzchen]

@2600 Password should not affect dropping. Reading through this thread there are a few others noting 2.4 GHz dropping with this firmware version.

I've had so much poor luck with IoT/guest networks that everything is on my main SSID:

Maybe try turning on 2.4 GHz on the main router.

Create a main 2.4 GHz SSID and password that match the IoT network credentials. May have to turn off/delete the IoT network to try this.

Or revert back to an older firmware as @Texasguy notes resolved his 2.4 GHz dropping.

 

[2600]

Experimenting: I believe I’ve resolved the issue with the 2.4 band dropping out. Previously, the 2.4 band would drop out on my main router, and unless I rebooted within 24 hours, it would also drop out on the mesh router too. I didn’t have the MLO feature enabled, and once I enabled MLO, the 2.4 band is now stable and functioning without any issues on the newest firmware. (I don't understand why)

 

[jksmurf]

Experimenting: I believe I’ve resolved the issue with the 2.4 band dropping out. Previously, the 2.4 band would drop out on my main router, and unless I rebooted within 24 hours, it would also drop out on the mesh router too. I didn’t have the MLO feature enabled, and once I enabled MLO, the 2.4 band is now stable and functioning without any issues on the newest firmware. (I don't understand why)

I don't have MLO, but I'll hazard a guess if I may ?

My understanding is that MLO allows devices to connect across multiple bands in a sharing mode, (i.e. 3 bands if the Router has 6Ghz as well) so perhaps devices are not relying solely on 2.4GHz as they may have been, which reduces congestion on the one band? You said you have wired backhaul so it's not that it was using 2.4GHz for backhaul, which is what you were suggesting. Anyway just a wild guess!

 

[Theraser]

Experimenting: I believe I’ve resolved the issue with the 2.4 band dropping out. Previously, the 2.4 band would drop out on my main router, and unless I rebooted within 24 hours, it would also drop out on the mesh router too. I didn’t have the MLO feature enabled, and once I enabled MLO, the 2.4 band is now stable and functioning without any issues on the newest firmware. (I don't understand why)

Hy,

I have a single router whitout MLO only the wifi 7 is enabled, and i have iot network. This not working for me the 2.4 ghz turning off within two hour. Only the previous firmware or the merlin firmware will solve the problem.

 

[Dragnet.nu]

I have my BE92U as an AiMesh node and it has the same/similar issue: 2.4 GHz band goes offline about once a day. Started with the 3.0.0.6.102_38979 update. If I disable the 2.4 radio in the mesh-config it restarts and then I can re-enable it (without a restart).
Edit: Ethernet 10 Gbps backhaul.
Edit 2: MLO is off, 2.4 GHz band uses only 20 MHz.

 

[2600]

I'm back to reporting issues with this update, and I'm giving up on... 3.0.0.6.102_38979 update. This morning I woke up and all three radio bands on my primary router were off. My mesh router was the only system broadcasting Wi-Fi. Now, after turning on MLO, all three of my wireless channels goes down on the main router, prior only lost the 2.4 band. Just loaded the previous software version.