Basic Troubleshooting DSL Modems
Common DSL modem problems include no downloads, slow downloads, or downloads that freeze one second then crawl the next. Blinking lights on the modem, strange errors with unknown codes, loose cables, and router problems can mess things up, too.
Before you can fix your modem, you need to know what kind of modem you have. By and large, DSL modems come in two flavors: Ethernet and USB. An Ethernet modem connects to your computer using a standard network cable with RJ-45 jacks. To use an Ethernet modem, you’ll need to have a notebook or desktop with a network card, also called a network adapter. In contrast, USB modems connect to your computer through a USB port, and they tend to install without much fuss. Some modems offer you both Ethernet and USB connections.
You’ll also want some nuts-and bolts information such as your modem’s make and model, in case you need to contact the manufacturer. The simplest way to find this is to look on the modem itself. On the back of the modem, you’ll see a label with the manufacturer’s name and the modem’s model and serial numbers. If for some reason that’s missing, you can also get the information from the user guide that came with your modem, or even from Windows itself. In Windows XP, click Start, right-click My Computer, and click Properties. Click the Hardware tab and then click the Device Manager button. You’ll see a list of all the hardware installed on your system. Click the plus sign next to Modems or Network Adapters to locate your DSL modem and then double-click its name for more information.
If you have a connection problem, you’ll know it at once. What you won’t know, sadly, is what’s causing it. Is it your modem? Your router? The ISP? It could be your phone jack or even a nearby microwave or cordless phone if you’re using a WiFi network. Because Microwaves, cordless phones, and even remote controls can play havoc with WiFi signals.
