modem-watchdog

A workaround for disappointing modems.

This script monitors an internet connection and tries to reboot a TR064-compatible modem (like a FRITZ!Box) if the internet connection seems broken. It was inspired by some issues with my modem and ISP. I noticed that my FRITZ!Box is not always able to recover by itself after a DSL line failure, but mostly will after a reboot.

The script is configurable, execute modem_watchdog.py --help for available options.

Thanks to bpannier for making the simpleTR64 library used in this project.

Running the script in a Docker container

Docker images are available for some common platforms. Alternatively, the image can be built locally.

With docker-compose

Add a service like this to your docker-compose.yml:

  modem-watchdog:
    container_name: modem-watchdog
    image: danielschenk/modem-watchdog:0.2
    # alternative: build locally
    # build: https://github.com/danielschenk/modem-watchdog.git#v0.2.0
    restart: always
    environment:
      TZ: "Europe/Amsterdam" # change as needed, will ensure logging in local time
    entrypoint:
      - "./modem_watchdog.py"
      - "--address"
      - "192.168.1.1"
      - "--user"
      - "foo"
      - "--password"
      - "bar"

Without docker-compose (pull image)

docker run -d danielschenk/modem-watchdog:0.2 --address 192.168.1.1 --username foo --password bar

Without docker-compose (build image locally)

1. docker build -t modem-watchdog https://github.com/danielschenk/modem-watchdog.git#v0.2.0
2. docker run -d modem-watchdog --address 192.168.1.1 --username foo --password bar

Running the script directly

Requirements:

• Python 3.8.x
• Some required packages, can be installed with: pip3 install -r requirements.txt