This has happened a few times now and it drives me insane.
All of my wired devices will drop out and disappear from the client list, but the wi-fi will continue to work perfectly.
Rebooting the modem doesn't fix it, but it will randomly resolve itself after a few hours.
Can't find any solutions online - Is this something TPG can help with?
Modem - TPlink Archer VR1600 v2
Firmware - 0.1.0 0.9.1 v5006.0 Build 200810 Rel.53181n