1Make sure the modem can work with

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Make sure the modem can work with your service provider. While uncommon, sometimes you might run into an issue where the modem you purchased isn't compatible with the internet service available in your area. Call your internet provider to find out or check their website for more information.
The modem you need will depend on the type of your internet connection. If you are using DSL, you will need a DSL modem. If you are using cable, you will need a cable modem. Fiber optic connections do not typically require modems.