Synology NAS Error Code 54: How to Fix It

Medium 15-30 minutes Medium Severity Verified June 2026
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Error Code
54
Brand
Synology
Product Type
nas
Severity
Medium
DIY Difficulty
Medium
Estimated Fix Time
15-30 minutes
Synology NAS error code 54 means the Apple Filing Protocol (AFP) service on your DiskStation Manager (DSM) has stopped unexpectedly. This prevents macOS users from connecting via AFP. The fix involves restarting the service or adjusting network settings.
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Tools You'll Need

How to Fix Error Code 54

  1. Check AFP Service Status

  2. Restart the AFP Service

  3. Reboot the NAS

    Ensure no data transfers are in progress before rebooting.

  4. Check Network and Firewall

  5. Update DSM

    Backup your settings before updating.

  6. Check AFP Logs

  7. Reset AFP Configuration

    Modifying system files via SSH can cause instability. Proceed only if comfortable.
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When to Call a Professional

If none of these steps resolve the error, contact Synology Support. Persistent AFP crashes may indicate hardware issues or corrupted system files that require professional recovery.

Frequently Asked Questions

What does Synology error code 54 mean?
Error code 54 indicates the AFP (Apple Filing Protocol) service has stopped, preventing macOS AFP connections.
How do I restart AFP service on Synology?
Go to Control Panel > File Services > AFP. Uncheck 'Enable AFP service', click 'Apply', then recheck and apply.
Will rebooting my Synology NAS fix error 54?
Often yes. A reboot can clear transient issues that stopped the AFP service.
Why does AFP keep stopping on my Synology?
Common causes: network conflicts, firewall blocking port 548, insufficient disk space, or a bug in DSM.
Can I use SMB instead of AFP?
Yes. SMB is supported on macOS and may be more stable. Enable SMB in Control Panel > File Services > SMB.

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