@YanAndrew This is not the right device, it is not compatible with Deco M5 mesh you have. If you want that type of add-on, you should be getting Deco M3W:...

@Kabuman Usually all it takes is connect device by Ethernet cable to Deco, and it'll work. Two common scenario when it does not: 1. You have IPTV enabled and trying to connect computer to Deco...

@dot-bob I have tested that same scenario. I have Deco mesh in AP mode. I powered off ISP Router and rebooted Main Deco. While ISP router is down, Main Deco provides IP addresses in the range...

@tpliiiiiiink This is not really a simple change, judging from how deep it is embedded in Deco functionality and how it were designed to work. It is also possible that change was not high on the list...

@richkiwi Please review this document: What do the different LED colors meaning of Deco? Pulsing blue means you haven't configured that Deco. It must be added to your Deco mesh. You can do that...

@tpliiiiiiink Simpler your home network layout is, lesser chances are you'll experience problems with that feature. Even if you do, there are often simple fixes to apply till firmware is ready to...