> For the complete documentation index, see [llms.txt](https://docs.gxc.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.gxc.io/docs/troubleshooting/onyx-troubleshooting-guide.md).

# Onyx Troubleshooting Guide

This guide provides structured, step-by-step procedures for diagnosing and resolving the most commonly reported issues encountered on the GXC Onyx private cellular platform.

## What's Covered in This Guide

This guide includes the following chapters:

* [*Onyx Portal Operations and Administration Issues*](/docs/troubleshooting/onyx-troubleshooting-guide/operations-and-administration-issues.md)
* [*Service Issues*](/docs/troubleshooting/onyx-troubleshooting-guide/service-issues.md)
* [*Onyx Portal Navigation and Indicators Reference*](/docs/troubleshooting/onyx-troubleshooting-guide/onyx-portal-navigation-and-indicators-reference.md)
* [*agw\_user CLI Command Reference*](/docs/troubleshooting/onyx-troubleshooting-guide/agw_user-cli-command-reference.md)

## How to Use This Guide

Each troubleshooting topic in this guide follows a consistent format to help you quickly identify and resolve issues.

* Symptoms — What the user or operator observes (for example, a UE displaying "No Service").
* Indicators — Where to verify the issue in the Onyx Portal (dashboards, status indicators, alerts, and logs).
* Possible Causes — The most likely underlying reasons for the symptom.
* Actions — Recommended diagnostic and corrective steps to take, in recommended order.
* Resolution — How to confirm the issue is fully resolved, where applicable.
* Escalation — When and how to engage GXC Technical Support, and what information to gather before creating a support case.

## Contact GXC

For technical issues or additional support, visit <https://gxc.io/contact-us/>.


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