Nokia | G-010g-r Manual

According to troubleshooting steps from Cuckoo Fibre Help , here is what the LED lights generally mean:

The device features a simple set of LED indicators to help troubleshoot connectivity: : Green indicates the device is receiving power. Solid Green : Connection to the OLT (ISP) is established. Flashing Green : Attempting to synchronize or register with the network. : No fiber signal detected or authentication failure. LAN (Ethernet) Solid Green : Device is connected to a router or PC. : Data is currently being transmitted. Installation & Configuration Fiber Connection : Insert the SC/APC fiber cable into the optical port. nokia g-010g-r manual

This unit is a dumb modem (media converter). It does not have Wi-Fi, routing capabilities, or a built-in firewall. It converts optical light signals into electrical Ethernet signals. According to troubleshooting steps from Cuckoo Fibre Help