This is the way.
Modem> deco #1(router)>switch>deco #2>PC
IF YOU ARE GETTING LESS THAN 1GB HARDWIRED, double check your deco#2 is showing a hardwired connection to deco#1 in the app. Also double check your home wiring by labbing this setup with patch cables all in front of you.
I love this argument. I prefer inline, because I’m faster at crimping and troubleshooting an rj45 than punch downs. As for technical accuracy some say punch down is better for POE, and if you need to get your drops certified but I don’t think in a residential setting it matters (runs less than 100ft)