JVC Black Sapphire SL42B-C User Manual page 57

No Internet Access (Hard Line)
Troubleshooting

Check the Ethernet cable. Try unplug and plug again

Check home router or network switches, make sure they are turned on

On TV menu, choose NETWORK > MANUAL SETUP. Make sure DHCP is chosen in TYPE

On TV menu, choose NETWORK > TEST CONNECTION. If Status shows Connected, the TV has connected
properly with the router or gateway. Please consult your internet service provider for possible internet
outage in your area

Try if you can access internet with PC or other devices through the same router or network switches