In this short video, you'll learn four ways to reboot your CenturyLink router, including how to reboot using the CenturyLink companion app. 29 juin 2022 · In this short video, you’ll learn how to return your CenturyLink modem, how to get a shipping label, how to pack up your modem for shipping, and how to send the package through UPS. If you need to return a modem to CenturyLink, it’s important to follow the packing and shipping instructions to ensure your package is processed.