> For the complete documentation index, see [llms.txt](https://mariadb.com/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://mariadb.com/docs/server/reference/error-codes/mariadb-error-codes-3100-to-3199/e3159.md).

# Error 3159: Connections using insecure transport are prohibited while --require\_secure\_transport=ON.

| Error Code | SQLSTATE | Error                           | Description                                                                                |
| ---------- | -------- | ------------------------------- | ------------------------------------------------------------------------------------------ |
| 3159       | 08004    | ER\_SECURE\_TRANSPORT\_REQUIRED | Connections using insecure transport are prohibited while --require\_secure\_transport=ON. |

## Possible Causes and Solutions

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