---
title: "Troubleshoot common issues"
slug: "certificatemanager-troubleshoot-common"
updated: 2026-09-17T09:19:49Z
published: 2026-09-17T09:19:49Z
canonical: "guide.ncloud-docs.com/certificatemanager-troubleshoot-common"
stale: true
---

> ## Documentation Index
> Fetch the complete documentation index at: https://guide.ncloud-docs.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Troubleshoot common issues

Available in Classic and VPC

You might run into the following problems when using Certificate Manager. Find out causes and possible solutions.

## Certificate deletion error

You cannot delete the certificate because the wrong authentication method was selected. Try again after deleting the certificate.

#### Cause

Certificates that are in the process of validation cannot be deleted.

#### Solution

If the domain ownership validation is not completed within 72 hours after applying for the certificate, the validation status will change to timeout or failure. Delete the certificate after the validation status changes to failure.

              Note

              

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