No 5GHz on one of my two Deco E4R devices

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No 5GHz on one of my two Deco E4R devices

This thread has been locked for further replies. You can start a new thread to share your ideas or ask questions.
No 5GHz on one of my two Deco E4R devices
No 5GHz on one of my two Deco E4R devices
2021-07-12 13:23:06
Model: Deco E4  
Hardware Version: V1
Firmware Version: 1.5.1 Build 20210330 Rel. 64251

Hello everyone,

 

I have just recently realized that the 5Ghz doesn't work on one of my two devices. The system works in AP mode and both are connected via Ethernet backhaul.

 

I think I have tried everything : reboot, factory reset, testing with wireless backhaul, switching the main device. No success.

 

While the "faulty" one was the main device, I checked the web UI and the 5Ghz was "on" but the channel was "0".

 

On the other one, everything is fine.

 

Am I missing something obvious ? Should I check a particular error in the logs to help narrow it down ? Or is it just bad luck and an hardware issue ?

 

Thank you in advance for any help you can bring. ;)

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Re:No 5GHz on one of my two Deco E4R devices
2021-07-13 06:20:03

@EcthelionDLS 

Hi, thanks for the feedback.

Is there any change recently, like a new firmware upgrade or power outage?

How about the channel setting on the 2nd E4?

If the other one is working fine, I am afraid it is a hardware issue and this unit needs to be replaced.

 

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Re:No 5GHz on one of my two Deco E4R devices
2021-07-13 07:05:12

Hello @TP-Link 

 

The other unit is using channel 44.

 

No change at all, they were upgraded right after the first use.

 

Thanks a lot, I thought it could only be hardware related but I wanted to be a little more sure. ;)

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