In the «Internet» tab > «WLAN scheduler» you can set operating times for your home WLAN.
If you want to access the internet during inactive operating times, you can always manually activate your WLAN. Use the WLAN button on the Internet-Box.
If the WLAN is deactivated you still have access to the Home Appp and to the connected smart home devices. Remote Access must be activated. Here you can see how access from the road is activated.