Setting up the FRITZ!Box for use with a fibre optic connection
You want to use the FRITZ!Box with a fibre optic modem? ✔ It's easy with this guide.
You can also use your FRITZ!Box with an additional fibre optic modem on a fibre optic connection (fibre to the Home, FTTH).
Since the FRITZ!Box establishes and controls its own internet connection over the fibre optic modem, all FRITZ!Box functions (such as firewall, parental controls) are also available without restriction in this operating mode.
1 Connecting FRITZ!Box with the fibre optic modem
Insert one end of a network cable into the 'WAN' socket on the FRITZ!Box. Use the network cable supplied with the FRITZ!Box, for example.
Insert the other end of the network cable into the LAN socket on the fibre optic modem (ONT, Optical Network Termination).
2 Configuring the internet connection in the FRITZ!Box
Enter the FRITZ!Box password given on the type label of the FRITZ!Box and click on 'Log In'.
Click on 'Internet' and then on 'Account Information'.
Select 'DSL or fibre optic modem' from the drop-down list 'Internet connection via'.
If your internet service provider is displayed in the drop-down list, select your provider and enter the account information you received from your internet service provider in the corresponding fields.
If your internet service provider is not displayed:
Select 'other internet service provider'.
Enter the account information you received from your internet service provider in the relevant fields. If account information is not required, enable the option 'No'.
Enter the speeds of your internet connection in the 'Downstream' and 'Upstream' fields.
If your internet service provider requires you to use a particular VLAN ID, click on 'Change Connection Settings', enable the option 'Use VLAN for internet access', and enter the VLAN ID.
Click on 'Apply' to save the settings.
Now the FRITZ!Box uses the account information you entered to establish the internet connection. Then you can configure your phone numbers in the FRITZ!Box and connect your wireless devices with the FRITZ!Box.
3 Setting up telephony in the FRITZ!Box
If you want to connect phones to the FRITZ!Box and use them to make calls over the internet: