FreeRADIUS - The authentication server is unresponsive.

[NavinS Luthor]

Hello FreeRADIUS experts, hope you are all well!

Not sure where or what did i configure wrong, most thing are in default but
still facing "The authentication server is unresponsive" error.

I've complied step by step what i did in below docs, please help advice me
where im wrong.

Step by step: https://docs.google.com/document/d/1FE0Db4OacQjbCk_2ba
QQ9WsOEDChDK6uomW3kJGgxtA/edit?usp=sharing

Any and all help is much appreciated.