Basic Troubleshooting Cable Modems
Broadband access has become so ubiquitous that you can get this high-speed Internet connection almost everywhere. Most users rely on a cable modem or a Digital Subscriber Line modem for obtaining this fast connection, and these modems are almost always external. That means that these modems will take up some extra desk space, but it also makes it easier to find out what’s wrong and troubleshoot the devices.
Cable Internet access typically offers transfer speeds of 1Mbps or more that’s at least 20 times faster than the speediest dial-up modem. As their name implies, cable modems connect to the same coaxial cable that brings you your TV signal. Most of them then connect to your computer either via an Ethernet or a USB connection, or going through network router.
On The Outside
You can glean a lot of information about your cable modem just by looking at it. For example, the manufacturer name and model number will be on the device somewhere, usually on a sticker on the back. This can come in handy when you’re searching online for updates or troubleshooting help.
The front of the cable modem usually features a series of indicator lights; the most commonly used ones say Power, Cable, Data, Ethernet, and USB. The Cable light might also be called an Online light on some modems, and the Data light is sometimes divided into two lights for uploads and downloads. These LEDs can also be quite helpful when you’re troubleshooting as they will flash (or not flash) differently as a way of delivering error messages.
The rear of the cable modem will have ports for the coaxial cable, a power supply, and Ethernet and USB cables. You’ll also often find a reset button.


