@Tel54 I've the same issues, I would like to downgrade firmware version . The previos one worked very vell (1.6.4) I've tried to downgrade but i can't 

  @Jcl_2025 

I have resolved my isdsue with the help of the support team and have reversed the firmware back to 1.6.4; now everything works fine. Hope that helps.

See  the following; 

Certain Programs and Service Can't be Loaded Properly on Deco M9 Plus_1.8.0

Friday - last edited Sunday

Tags: #Official #Highlighted Thread

Model: Deco M9 Plus   

Hardware Version: 

Firmware Version: 

This Article Applied to

Deco M9 Plus_V2/V2.2_1.8.0 Build 20241202 Rel. 38518

Phenomenon Description.

Recently, there was feedback that after updating to 1.8.0 Build 20241202, certain devices can't access Netflix, YouTube, MS Teams, or other Google services. While other devices seem to be ok on the same WiFi.

Possible Solutions:

The root cause still requires further confirmation at this time. We will keep the community updated once there is any improvement.

In the meantime, our engineer has provided a bridge firmware that allows for a downgrade from version 1.8.0 to the official version 1.6.4 without a factory reset so the original network configurations will not be messed up.

Update Guide

• Please install the beta firmware manually via web UI.
• Then upload the official 1.6.4 version again.

  @Tel54 Try beta firmware which is updated in 2025