# FileZilla - How to solve error: A packet with illegal or unsupported version was received.

While trying to connect to an FTP site using FileZilla, you might be prompted with the following error message:

*A packet with illegal or unsupported version was received.*

![image.png](https://cdn.hashnode.com/res/hashnode/image/upload/v1658515452765/j9uGhkLpC.png align="left")

**Here is a quick tip on how to solve it!**

## Why the error ❌
This is a TLS / encryption related error message.

## The solution 🚀
Simply prefix your FTP host / server url with sftp:// , thus your host / URL goes from mydomain.com ➡ sftp://mydomain.com

Alternatively, keep your host the same, but ensure you change the port to 22. Once you hit connect FileZilla will remove the port number and automatically prefix your host / URL with sftp://

📦 Illegal Packet ❗

### Follow the rabbit 🐰

[WP basics: How to Use FileZilla (FTP Tutorial)](https://youtu.be/adxmlHDim6c)

[PowerCert Animated Videos: FTP (File Transfer Protocol), SFTP, TFTP Explained.](https://youtu.be/tOj8MSEIbfA)

[FileZilla: FileZilla Documentation](https://wiki.filezilla-project.org/Documentation)