Licenses IP based license = Static/ Public IP of your server which never change even server restart
When the public IP of your server change, the OLP license getsinvalid. Request t o assign IP which never changes for the server. If your IP is valid, you will ge t free guide/support via email lifetime.
If you migrate to new server or perform any kind of IP change on the installed s erver, the OLP license will be invalid. In this case, you have to buy a new OLP.