User Manual Samsung QA55Q70AAU 55" Q70A QLED 4K Smart TV

Restart the router. Unplug the power, wait about 1 minute, and reconnect. Try connecting another device to the router. If it works, it's a TV problem, and if it doesn't, it's a router problem.

Hold down the "Exit" button for 12 seconds if you want to point the remote control at the TV. The TV can be reset with the "enter" button on the remote control. The unit will stop operating.