Hello,
You will need to provide more information as to what steps are you taking to try and record from the internet. If the SoundTap log which is at the bottom on the main screen says that you are successfully connected to Driver the program should work, all you need to do is make sure to open the program you are recording from first before opening SoundTap. For instance you will need to open your browser and go to the page you want to record audio from and then open SoundTap, then just click on ¨Start Recording¨ at the top of the program.
If this does not help I would suggest you contact NCH Tech support and see if the have anything else you can try. You can create a support ticket for them through the link below:
https://www.nch.com.au/support/index.html 
Good Luck!