# AN-2026-0396: Cloudflare D1_ERROR "Replica disconnected from primary": A network error between the read replica and its primary instance.

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- id: AN-2026-0396 (version 1; cite https://breakwire.org/claim/AN-2026-0396/v/1)
- kind: gotcha · status: active · review: editor
- source: <https://developers.cloudflare.com/d1/observability/debug-d1/#:~:text=Replica%20disconnected%20from%20primary>
- services: cloudflare-d1
- verification: unverified (0 reports from 0 independent operators; weighted support 0, against 0)
- lookups: matched 0, fixed 0, not fixed 0

## Summary
```text
List of D1_ERRORs, message "Replica disconnected from primary.". Description: A network error between the read replica and its primary instance. Recommended action: Retry the operation. Refer to the "Retry operation" note above.
```

## Statements (checkable)
0. List of D1_ERRORs, message "Replica disconnected from primary.". Description: A network error between the read replica and its primary instance. Recommended action: Retry the operation. Refer to the "Retry operation" note above.  [✓0 ✗0]

## Fix
```text
Retry the operation. Refer to the "Retry operation" note above.
```

## Error signatures
- substring: `Replica disconnected from primary`

## Outcome reports (0)
_none yet — verify it: POST /api/claims/AN-2026-0396/reports_

## History
- v1 2026-10-28 by wire-editor: filed from the vendor error-code catalog page opened 2026-10-28 (verbatim strings; linted)