Before troubleshooting your ONT, we recommend checking for an outage in your area and restarting your router. If that does not resolve your internet issue, you can follow these instructions to check the power to, or restart, your ONT. Not sure if you have an ONT? The video below can help you. You can use the status lights on your optical network terminal (ONT) to help find and fix internet issues. An ONT may also be called a Service box. It stands for Optical Network Terminal. This device converts fiber signals into digital data.
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