@EMusch I have Deco mesh with M9 Plus as Main Deco. I run it in Access Point mode. My Internet connection is gigabit. When I run speed tests using "Test Internet Speed" from Deco app, I never get...

@RG58 See below the corresponding setting, in smartphone Deco app. After you configured first Deco, which will be your Main Deco, change that setting as shown and add other Decos to your mesh...

Can you explain how exactly did you test WiFi performance? I have Deco mesh with M9, if you can tell me how you tested, in more detail, I can share my experience.

@RG58 If you are only buying Deco mesh for WiFi coverage, configure them to run in Access Point mode. It'll keep your ISP provided router in play and you'll avoid a lot of headaches.

@richpriest To add to this: if I am not mistaken, it is not even web site pings but DNS queries.

@EMusch It appears you run your Deco mesh in Access Point mode. You won't have QoS settings in this mode, but instead Deco will deliver best performance. Have you tested your Internet speed using...