C4000 status lights overview TheC4000 seriesgateway modem was designed with a single light ring on the front, to simplify the process of checking the connection status. You'll have a DSL model (C4000BG, BZ, LG, or LZ) OR a fiber model (C4000XG), depending on your internet service. ...
Learn about CenturyLink C4000 modems, including the C4000BG, C4000BZ, C4000LG, C4000LZ, and C4000XG models. Follow our guide to using your C4000, including setup, specifications, and more.
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How much electricity does your modem use? Learn more about the power usage and energy efficiency of your model of CenturyLink modem.
Learn how to set up your new C4000 modem and activate your CenturyLink internet service. Follow the steps to complete your modem installation and get online.