@SylwjJ If I don't care about the speed I would bet on Archer C54.

@Viniraptor TL-SG1016D is a unmanaged 16 port switch - it doesn't have a DHCP server. Usually the routers have a DHCP server.

@Intracomp These are two different things. Here's how to use TP-Link DDNS cloud service. Here's hot to use TP-Link cloud account (TP-Link ID) to remotely manage your router.

@Milehiguy There's no mechanism for isolating a directly connected device through the router ethernet port from its LAN. You could use a travel router like TL-WR902AC in client mode and connect it to...

@Pawel2024 Yes, that's a known limitation. Same applies for the guest network.

@DIYUser11 Your best bet would be to configure speed limit for the problematic client device - details.