Power cycling your modem can often restore connectivity. Here's how:
- Shut down and turn off all computers on the network.
- Unplug both the cable modem and the router.
- Wait a few minutes. Plug in the cable modem.
- After the lights stop flashing on the cable modem (could take up to a minute), plug the router back in.
- Wait until the lights stop flashing on the router. Turn on any computer on the network.