Restarting your router, modem, and device clears up most internet issues. For more advanced fixes, run built-in troubleshooters, flush your DNS cache, switch Wi-Fi channels, or scan for. Your fiber optical network terminal (ONT), modem, or gateway provides LEDs letting you know the status of your internet (wide area network, or WAN) and home network (local area network, or LAN) connections. Here's an example of LEDs to look for if you have fiber internet and an ONT: The Power LED. To identify why your fiber internet isn't working, it's important to establish where the connection problem is. In many cases, a fiber connection problem originates from one of the following four devices: Router: Creates your Wi-Fi network in your home or business. Log in to your router's web interface, go to Advanced > Setup > LAN Setup, and enter the new DNS addresses under “Use These DNS Servers”. Why Do Fiber Networks Fail? Despite their robustness, fiber networks can fail due to:. Here's the ultimate guide to getting back online. A helpful tool for this is to visit websites like downforeveryoneorjustme.
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