Synology DS220+ — Error codes & fixes
Troubleshooting guide for the Synology DS220+. Diagnose an error code and find the fix.
Drive failed / degraded
drive-failedA drive in the array has failed or the volume is degraded, risking data loss.
Source: ProductDB enrichment catalog
Confidence: 85%
Verified Aug 8, 2026
NAS not accessible
not-accessibleThe NAS is unreachable on the network, often from a network issue or a hung service.
Source: ProductDB enrichment catalog
Confidence: 85%
Verified Aug 8, 2026
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