---
title: Troubleshooting & FAQ
description: Installation and update problems, common errors, FAQ and support.
url: https://nexcmp.com/docs/troubleshooting/
---

# Troubleshooting & FAQ

Installation and update problems, common errors, FAQ and support.

- [Installation errors](https://nexcmp.com/docs/troubleshooting/installation-errors/) — Every error message the NexCMP installer can print, what causes it and how to fix it — requirements, license activation, download verification, services and nginx/TLS.
- [Update errors](https://nexcmp.com/docs/troubleshooting/update-errors/) — Why an NexCMP update can fail — entitlement, download verification, signature, restart — and how to recover or roll back.
- [FAQ](https://nexcmp.com/docs/troubleshooting/faq/) — Frequently asked questions about installing, licensing, connecting infrastructure and running NexCMP.
- [Support](https://nexcmp.com/docs/troubleshooting/support/) — How to get help with NexCMP: what to collect, what to include in your message and where to send it.