I can’t get my new cable modem to work.

Many cable service providers let you save an installation fee if you set up your cable modem yourself. Because it’s an external installation, even a computer novice can usually handle it smoothly. But there are problems you may run into during installation.

If you can’t get your new cable modem up and running, make sure all the cable connections are tight. For example, make sure the Ethernet cord is snapped into the modem all the way and that the coaxial cable is tightened securely. Reboot your system and reset the modem.

Even if you’re doing the modem installation yourself, you may need to call your cable service provider during the process. They’ll need the serial number and MAC address number of your specific cable modem so it is allowed to sync up with their network.