First Time LTE Router Setup

Full Fibre

1. Removing Existing Broadband Equipment

If you've moved to Zen from a previous provider, carefully disconnect any equipment from your old ISP to make way for your new Zen FRITZ!Box.

2. Connecting the SIM and Antennas

Remove the SIM as Standard size from the packaging and insert this into the FRITZ!Box SIM card slot chip side down.

A Standard size SIM card going into a SIM card slot on a FRITZ!Box 6890LTEScrew on both of the provided Antennas into the far left and right inputs on the FRITZ!Box.

Antenna to the relevant input on the back of a FRITZ!Box 6890LTE
3. Connecting the Ethernet Cable

Plug the Ethernet cable into "Port" on your ONT.

Ethernet  port on a single port Openreach ONT


Connect the other end of the cable to the blue "WAN" port on your router.

A blue WAN port on the FRITZ!Box 6890 LTE router

When your service is activated, the "PON" light on your ONT will go solid green and the "PORT 1" light will start flashing once it's talking to your router.

Openreach ONT lights in a working state | Zen internet

4. Connecting the Power Cable

Mains power connectors may come with a UK style head you have to clip onto them. Once done, connect this to a mains power socket.

Connect the remaining power cable to the back of your router.
Power cable into power port | Zen internet

5. Wait for 5 to 10 Minutes

Your router will need about 5-10 minutes to set itself up. It shouldn't need any help so go and make yourself a cup of tea whilst you wait.

When you come back, the Power/LTE.DSL light should be solid on the FRITZ!Box, meaning your router is ready to use!

a green light showing as on for a Power/LTE.DSL on a FRITZ!Box router
Everyroom Setup

If you've purchased the Everyroom product from Zen, our Repeater Setup guide will help you connect it to your FRITZ!Box.

Contacting Technical Support

If you need further assistance, please contact our Technical Support team.

Carbon Neutral
Phone | Zen Internet
Zen Internet - Home SalesSales
01706 902573
Phone | Zen Internet
Zen Internet - Customer EnquiriesCustomer Enquiries
01706 902001