@Alpaslan This forum post from TP-Link Support will explain: The models that support "Test Internet Speed"

@mariocaz You can use TP-Link powerline adapters to establish wired link to Satellite Deco. I have good news for you: no need to connect second powerline adapter to Main Deco. In fact, with Deco mesh...

@RobAC You can start without changing the original modem to bridge mode. In many cases, it will be just fine. You will need original modem in bridge mode only if you find an app or device (such as...

@mariocaz Yes, 80 devices is a lot. You should have small number of devices connected to ISP Router now. You can simplify ISP Router SSID only and then follow steps I outlined earlier: connect camera...

@mariocaz I am not sure range extender will help, you should not need it when you have ISP Router with its WiFi and Deco mesh with its WiFi. Two recommendations: 1. Simplify Network Names. For...

@mariocaz Open Deco app. There is large "WiFi Settings" button in the top right of Main page. Click on that button, new screen will appear. There, you will see: Network name (SSID). Find same...