Cheers. Tagged your post as the solution.

@David-TP @Philbert Figured it out! During the setup for the X20 in router mode, the default for the app was forcing me to have values set against the IPTV VLAN. I was unaware that this results in...

@David-TP I did try several cables with no success. Re the IP address. I am unable to see the bridge in the Deco app, and likewise via the Hue app, to have access to changing the IP for the bridge....

@Philbert The ISP router is not included in the setup. The first X20 is configured in router mode, and connects the internet via Ethernet port 1 to the FTTH modem. The Hue bridge connects to same X20...

Hi all, I have installed 2 X20 Deco units into my house to replace the ISPs router. Almost everything is functioning correctly, apart from the Philips Hue connection/access. When I connect the Hue...