What should I do if I'm experiencing the NAS unexpected Reboots/System Hang?
Applicable Products:
- All NAS series
If you are experiencing NAS unexpected reboots/system hang, follow the procedures below to resolve the issue.
Check the memory module installed on the NAS.
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If you changed the memory modules, replace the memory modules with the original one shipped with the NAS
Note: Use only QNAP memory modules to maintain system performance and stability. For NAS devices with more than one memory slot, use QNAP modules with identical specifications.
Important: Using unsupported modules may degrade performance, cause errors, or prevent the operating system from starting.
Disable Third-Party Apps in App Center
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Login QTS as administrators
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Open App Center
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Disable all Third-Party apps in App Center
- If the issue no longer recurs, enable the third Party app one by one to confirm the cause.
- if the issue still recurs, run the next step
Disable QNAP Apps in App Center
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Login QTS as administrators
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Open App Center
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Disable all QNAP apps in App Center
- If the issue no longer recurs, enable the QNAP app one by one to confirm the cause.
- if the issue still recurs, run the next step
Disable SSD cache if it is enabled
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Login QTS as administrators
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Find Control Panel > Storage & Snapshots > Storage > Cache Acceleration
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Turn off SSD cache
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If the issue no longer recurs,
- Remove SSD cache
- Recreate SSD cache
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if the issue still recurs, run the next step
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Check if the HDD is in the compatibility list
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Login QTS as administrators
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Find Control Panel > Storage & Snapshots > Storage > Disk/VJOB
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Note the disk model
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Compare the disk models with the QNAP compatibility list
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Replace the incompatible disk
- if the issue still recurs, run the next step
Run bad block scan and SMART complete Test on the disks
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Login QTS as administrators
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Find Control Panel > Storage & Snapshots > Storage > Disk/VJOB
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Check all disk status
- Click Action > Scan for Bad Blocks
- Click Disk Health > Test > Complete Test
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Check the result
- If a disk problem is reported, replace the abnormal disk
- if the disks pass the test, contact QNAP support by Service Portal for further assessing this issue.
