@Sunshine I dont believe this answer from TP-Link support, if the product offers DHCP, the devices should do it properly. Im struggling the same issue in my network, doesnt matter how I setup the...

Same problem here, I have a setup with 3 Deco S7, they were working amazing since the beginning but last 2 weeks, have been driving me crazy, I even did setup from scratch, resetting all of my 3...