# Troubleshoot

**URL:** https://rootcnc.discourse.group/c/root-controller/troubleshoot/25.md

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## [Problem testing Root Controller ISO](https://rootcnc.discourse.group/t/problem-testing-root-controller-iso/306)

<div class="topic-metadata">

**Author:** [@mjmnz](https://rootcnc.discourse.group/u/mjmnz)\
**Replies:** 15\
**Last updated:** [2 March 2025 21:39 UTC](https://rootcnc.discourse.group/t/problem-testing-root-controller-iso/306 "2025-03-02T21:39:40Z")

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I have the Root Controller set up on the bench and have been attempting to get a basic setup working before replacing the current controller in my home-built CNC. I followed your video showing your demo and have FluidNC …