You cannot replace the ISP-provided ONT with a fiber cable alone, but you can use your own compatible router connected to the ONT.

Fiber optic internet requires an Optical Network Terminal (ONT), which converts the light signals from the fiber cable into electrical signals that your router can use . The ONT is installed and activated by your telecom provider, and it is essential for the connection; a traditional router or direct fiber cable cannot replace it .

Using Your Own Router

You can connect almost any modern router to the ONT via an Ethernet WAN port, provided it supports the speeds of your fiber plan . Key considerations include:

• WAN Port Compatibility: Your router must have a Gigabit Ethernet WAN port to handle typical fiber speeds. For multi-gigabit plans, routers with 2.5 GbE or higher may be required .
• Wi-Fi Standards: Wi-Fi 6 or 6E routers are recommended for optimal speed, efficiency, and device management .
• ISP Settings: Some ISPs require specific VLAN, PPPoE, or IPoE configurations. You may need to enter these settings manually in your router's admin panel .
• Additional Services: If your ISP provides TV or VoIP, replacing the router may complicate these services, as they often rely on the ISP's equipment for proper configuration .

Practical Setup

1. Ensure the ONT is installed and active by your ISP.
2. Connect your router's WAN port to the ONT using an Ethernet cable.
3. Configure any required ISP-specific settings (VLAN, PPPoE, DHCP).
4. Test your connection to confirm full speed and stability.

Summary

While you cannot bypass the ONT with just a fiber cable, using your own router is possible and often beneficial for better Wi-Fi coverage, advanced features, and network control. Ensure your router is compatible with fiber speeds and ISP requirements to avoid performance issues .