I switched from an Archer A7 to a Deco x55 assuming I'd get better coverage, and I do. But my Pihole doesn't show up on the network.

My current set up is Internet -> Modem  -> Deco (Main) -> Pihole (plugged directly into main, using ethernet to micro-usb) -> Rest of network

I have also tried Internet -> Modem  -> Deco (Main) -> TL-SG108 Switch -> Other wired devices including Pihole (plugged directly into main, using ethernet to micro-usb).

It seems that no matter what I do or where I plug the Pihole in, it doesn't show up on the network. I've restarted the entire network, turned off/on the pihole, searched around for various topics on the forum, but nothing seems to help. Any advice on what I can do get this thing to show up?