In most cases, yes - you will need a new router when upgrading to full fibre, but there are some exceptions.

Full fibre uses different technology from standard broadband, and many older routers aren't designed to support it properly.

The simple answer

Most people need a new router for full fibre, and providers usually include one as part of the installation.

Using the supplied router is the easiest and most reliable option.

Why full fibre often needs a different router?

Full fibre (FTTP) brings fibre directly into your home instead of using a phone line.

This means:

• An Optical Network Terminal (ONT) is installed
• Your router connects via Ethernet, not a phone socket
• Higher speeds require more powerful hardware

Routers designed for ADSL or FTTC often aren't compatible.

Can I keep my existing router?

You may be able to keep your router if:

• It supports an Ethernet WAN connection
• It can handle high speeds reliably
• Your provider allows third-party routers

However, even compatible older routers may struggle with Wi-Fi performance on full fibre speeds.

Why providers usually supply a new router?

Most providers include a new router because:

• It's optimised for their network
• It supports modern Wi-Fi standards
• It reduces setup and fault issues

For most households, this delivers the best experience.

What happens during installation?

On installation day:

• An ONT is fitted inside your home
• Your router is connected to the ONT
• Wi-Fi is set up and tested

If you use your own router, manual configuration may be required.

When upgrading your router is strongly recommended?

A new router is especially important if:

• Your router is more than a few years old
• You're upgrading to 300 Mbps or faster
• You have many connected devices
• You live in a larger or multi-storey home

Good Wi-Fi is essential to benefit from full fibre speeds.

While some existing routers may work, upgrading often improves speed, stability and Wi-Fi coverage.