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Show HN: NetSentinel – a local network security scanner and connectivity monitor

  • ossianericson--Github.com
  • published date: 2026-06-19 08:42:13 UTC

A Google Nest speaker was winning the STP root bridge election on my network and knocking out DNS every 45 seconds. Took five separate tools to find it.I started NetSentinel one Sunday afternoon out of frustration. Thought I would be done the same evening. Bu…

The free, open-source network monitor that works with any router, modem, or access point not just the brands it was built for. Runs 100% locally. Windows three options: Or via winget (keeps the app… [+21780 chars]