DHCP server not working completely

I just installed 5 new peplinks and I noticed about half my devices/clients are not showing up.
I’ve tried everything that I can remotely and I saw a few forums about turning DHCP server off and on. I tried that a few times and still can’t get all my devices/clients to show.
Sometimes the ones that do work, disappear. I had intouch setup as well and those no longer work (of course).