While trying to setup TP-Link Deco W3600 mesh wifi devices, I found that it was easy to plug one of the devices into my existing wifi router. The Deco creates its own wifi network, however, instead of boosting the signal where it was plugged in.

I tried to replace my router with the Deco, and I ran into this problem: “Main Deco turned red after creating the Wi-Fi name and password during the setup“

On Xfinity, the correct IPTV/VLAN settings are:

• Turn on IPTV/VLAN
• Connection type Dynamic IP
• Mode Bridge

This page provided by TP-Link shows where to input these settings.