This week I write a shot tutorial on how to use FRITZ!Box behind a cable Modem.

You have to connect your FRITZ!Box via Network cable on the “LAN1” Port of FRITZ!Box and connect your computer to FRITZ!Box either via LAN or Wi-Fi.

To see all the following settings please activate the Expert Mode in the System folder first. Now copy the settings in the screenshot.

For upstream / downstream please insert the Internet speed data for your line. Save the settings.

Last but not least you will need to restart your cable modem & FRITZ!Box by unplugging them from the power mains for a moment.

Now everything should be working!