Synology NAS Error Code 69: How to Fix It

Easy 10-20 minutes Medium Severity Verified June 2026
Summarize with ChatGPTSummarize with ClaudeSummarize with Perplexity Add as Preferred Source on Google
Error Code
69
Brand
Synology
Product Type
nas
Severity
Medium
DIY Difficulty
Easy
Estimated Fix Time
10-20 minutes
Error code 69 on a Synology NAS indicates that a collaborative session in Synology DSM Office (Spreadsheet, Document, or Slide) has failed. This typically occurs when there is a network interruption, server timeout, or conflict between users editing the same file. The error prevents real-time collaboration and may cause unsaved changes to be lost.
Ad

Tools You'll Need

How to Fix Error Code 69

  1. Check Network Connectivity

  2. Refresh DSM Office Tab

  3. Clear Browser Cache and Cookies

  4. Check DSM Office Service Status

  5. Update DSM and Office Package

  6. Check File Permissions

  7. Reboot the NAS

  8. Check Resource Usage

Ad

When to Call a Professional

If error persists after updating software and rebooting, contact Synology Support. You may need to restore the file from backup or reinstall the Synology Office package.

Frequently Asked Questions

What does Synology NAS error code 69 mean?
Error 69 indicates a Synology DSM Office collaborative session failed, usually due to network issues, server timeout, or file conflicts.
Will I lose my data if I see error 69?
Unsaved changes may be lost, but the original file remains intact. Always save frequently and enable versioning in DSM Office.
Can multiple users edit a DSM Office file simultaneously?
Yes, DSM Office supports real-time collaboration. Error 69 may occur if the session is interrupted; follow the steps above to reconnect.
Do I need to reinstall DSM to fix error 69?
No, reinstallation is rarely needed. Focus on network, software updates, and permissions first.
How can I prevent error 69 in the future?
Keep DSM and Office package updated, maintain stable internet, avoid editing on VPNs, and regularly back up Office files.

Related Error Codes