Archer C9 - 5GHz WiFi Stopped Working

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Archer C9 - 5GHz WiFi Stopped Working

This thread has been locked for further replies. You can start a new thread to share your ideas or ask questions.
Archer C9 - 5GHz WiFi Stopped Working
Archer C9 - 5GHz WiFi Stopped Working
2023-03-13 08:31:06 - last edited 2023-03-13 10:47:36
Model: Archer C9  
Hardware Version: V1
Firmware Version: 3.17.0 Build 20150507 Rel.34590n

I've had a C9 for years, and it's been working for the most part. A couple of days ago internet on the 5GHz WiFi stopped working - I can connect, but no internet.

The 2.4GHz connection is working fine, so there is no issue with the internet connection.

 

This is across multiple devices (laptops, phones, WIFI extenders etc.) - 2.4GHz works but 5GHz doesn't.

 

I've tried rebooting the router a few times but no joy. Any tips on what to try next or how to troubleshoot?

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Re:Archer C9 - 5GHz WiFi Stopped Working
2023-03-13 18:16:51

I managed to solve it by adjusting the antennas on the router to improve connectivity to the clients.

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