The key was that no lights were showing when LAN ports were connected. No other tests needed. It's a lifetime warranty. After about an hour with TP-link chat support they agreed to replace.

@Andone 1. New router installed yesterday. Cat 6 wired Ethernet connection straight to laptop from back of router works 100% 2. Cat 6 connection running from Eth1 port to port #1 on switch. 3. Cat 6...

We have a TP-Link TL-SG1024D 24-Port Gigabit Ethernet Switch installed on our house, it's 15 months old. The green light is showing on the switch. We've had no ethernet for the last few days and with...