fritzbox-dashboard.png
Dashboard working with this fritzbox prometheus exporter: https://github.com/sberk42/fritzbox_exporter
Adjusted to also work properly with grafana 7 (for grafana 6 use revision 1).
The dashboard was based on this influx based fritzbox dashboard: https://grafana.com/grafana/dashboards/713
It has been ported to using prometheus as datasource and enhanced.