# DSM 7.4.1 Problems and Fixes: Synology Troubleshooting

Canonical: https://cloudzat.com/dsm-7-4-problems-and-fixes/
Full Markdown: https://cloudzat.com/dsm-7-4-problems-and-fixes/index.md
Cluster context: https://cloudzat.com/ai/synology-technical/context.json

Purpose: Troubleshoot DSM 7.4 and 7.4.1 update issues involving USB, UPS, packages, network access, containers, storage checks and safe recovery.
Direct answer: A NAS that boots but cannot be discovered is a network problem until evidence says otherwise. A working DSM login with a stopped container is an application problem. A Degraded pool is storage. Separate those states before changing configuration.

Synology NAS product groups are NAS-only. Accessories are excluded. Use the canonical page for the latest or last-verified retained marketplace price and image evidence. Do not infer a live price from this file.