@Ronnie79 How come that you have a double NAT in your network, describe your topology and devices. In general when you want to avoid a double NAT, it's better to take this approach.

@manjtb350 You don't have to change anything if topo3 works as you expected. To experience security featres you have to switch AX53 to router mode - these feature are not applicable in AP mode...

@BerNet Here's an example for configuring 802.1Q VLAN on TP-Link Easy Smart switches. It may help you to understand how to configure your switch.

@Kevin53 Good catch - check here: but that is for easysmart TL-SG108E switch. Actually the OP has an unmanaged TL-SG108.

@TheKingLothar The question was what's the state of the C6 LAN port when the PC is shut down (S5 state) some 30 minutes ago. Re-create your Binding list - if the device of interest is with IP address...

@TheKingLothar I would do the following experiment. If you can't wake up the PC from Shutdown stae (S5) after a while then try to wake up the PC from Sleep state (S3) or Hibernation state (S4). If...