Hikvision Cameras work on main switch, but not on remote one

I just purchased 2 more Hikvision DS-2CD2042WD-I 4MP HD cameras to match the one I have working already. I plugged them into my main, 24 port switch downstairs and configured each of them with unique IP addresses. I am also using injectors to power these POE. I was able to see them fine on both the SADP setup tool and in Blue Iris. Then, I moved them to another remote switch upstairs that I want to permanently attach them to. They power up fine but do not communicate with either SADP or Blue...

Hikvision Cameras work on main switch, but not on remote one