# Troubleshooting

On this page we'll walk through some of the most common issues that folks run into when setting a custom domain, and explain how to solve them.

<details>

<summary>Why  I have this error: ERR_SSL_VERSION_OR_CIPHER_MISMATCH?</summary>

This error appears because the certificate does not have authorization to be issued.&#x20;

At certain hosting providers you must add **2 additional CAA records** in your DNS:&#x20;

`0 issue "pki.goog"`&#x20;

`0 issuewild "pki.goog"`

*Example from Hostinger.com*

<img src="/files/hnhalU3zEgHymnCB5flI" alt="Hostinger.com example" data-size="original"><img src="/files/P3RCZb4C4B0M4b9ZPF6r" alt="Hostinger.com example" data-size="original">

Once done, **deactivate then reactivate** your custom domain in [CUSTOM DOMAIN](https://tip4serv.com/dashboard/domain).

If you still have the error 24 hours later **deactivate then reactivate** again. DNS can take time to propagate.

</details>

<details>

<summary>Why i have this error: Error 1014 CNAME Cross-User Banned</summary>

This issue may occur after several configuration errors during the setup of a DNS CNAME record. To resolve this, please follow these steps:

* Deactivate your domain in [Custom Domain](https://tip4serv.com/dashboard/domain) settings.
* Click Save.
* Reactivate your domain.

If the problem persists, please [contact our support](https://tip4serv.com/contact) team for further assistance.

</details>

<details>

<summary>Why I have an invalid SSL error when I go to my store?</summary>

Note that you must wait at least 1 hour for your SSL certificate to be created.\
If you still have the error, you have misconfigured your DNS CNAME.

To test your DNS click on the **DNS CHECK** button in [CUSTOM DOMAIN](https://tip4serv.com/dashboard/domain).

</details>

<details>

<summary>Why my custom domain not redirect correctly?</summary>

You have misconfigured your DNS see [Configuring DNS](/store-setup/custom-domain/configuring-dns.md)

</details>


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.tip4serv.com/store-setup/custom-domain/troubleshooting.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.
