First you need to download strongSwan VPN Client on your Android TV from the Play Store.

Open strongSwan app and click on Add VPN Profile and ente the following details:

Server: Any of server mentioned here
​VPN Type: IKEV2 EAP (Username/Password)
​Username: LimeVPN Username
​Password: LimeVPN Password
​CA Certificate: Check the option “Select Automatically”
​Profile name: A name of your choice.
​

Click on Save.

Click on the profile to connect.