If your fiber internet shows no WAN connection, first verify the fiber optic cable is securely connected to the ONT (Optical Network Terminal). Check the ONT's status lights for signal and power indicators. Why Do Fiber Networks Fail? Despite their robustness, fiber networks can fail due to:. An Ethernet cable will connect your router to the fiber terminal (ONT), either directly or by plugging first into a wall jack and then into your router (this depend on whether the terminal is located outside or inside). Sometimes, those two are combined in a single hardware box called a residential gateway. Hi, on the gateway WAN settings page for the ONT, I have options to set between static ip and dhcp, dns, and vlan settings (tag action, vlan id).
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