YOU HAVE CHECKED THE LIGHTS ON THE MODEM AND CONFIRMED IT'S OFFLINE 

1.Simple Fixes

Restart your modem and router: Sometimes the easiest solution is also the most effective.

Check all the cables: Make sure everything is plugged in tightly and securely.

Examine the power source: Ensure the modem and router are receiving power.

 2. Identifying the Problem

Look at the lights: Different lights on your modem and router can indicate specific issues.

Check for error messages: Pay attention to any error messages displayed on your devices.

Test other devices: Try connecting a different device to the network to see if the problem is isolated.

 3. When to Call Your Internet Service Provider (Comcast, AT&T, WoW)

Common issues to call about: Power outages, network problems, and equipment malfunctions.

Information to have ready: Your account number, modem and router information (MAC Address) and a clear description of the problem.

Tips for dealing with customer service: Stay calm, be clear, and document the call.