> For the complete documentation index, see [llms.txt](https://gandyhacks.gitbook.io/gandyhacks-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://gandyhacks.gitbook.io/gandyhacks-docs/key-not-found-invalid-license-key.md).

# Key Not Found / Invalid License Key

{% stepper %}
{% step %}

### Use a VPN

Consider using a VPN, such as [ProtonVPN](https://protonvpn.com/) (which is free). This may help if your firewall or ISP is blocking the connection.
{% endstep %}

{% step %}

### Ensure You Have the Latest Loader

Make sure you are using the latest version of the loader. Check for updates and install them if available.
{% endstep %}

{% step %}

### Switch to a Different Network

Try connecting from a different network to see if the issue persists. This could help identify if the problem is specific to your current network.
{% endstep %}

{% step %}

### Check Key Validity

* Confirm that your key still has valid subscription time.
* The time of your subscription counts down from its first activation in the loader.
  {% endstep %}

{% step %}

### Reset Windows or New PC?

If you recently reset your Windows or switched PCs, open a support ticket in the discord with your invoice and key to receive a HWID reset.
{% endstep %}
{% endstepper %}

{% hint style="info" %}
Products with a built in spoofer do not require a separate spoofer loader; it is integrated into the tool itself.
{% endhint %}

By following these steps, you can address the error triggered by loader communication issues with Authentication servers. If the problem persists, consider reaching out for further assistance or checking the support resources for the specific tool or service.


---

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