The issue I am having is the Assumed Users (AU) not working correctly. Even though I think I have everything set up correctly, if I disable an AU, the AU can still access the Internet. Needless-to-say, this is not what I want to happen. Please let me know if I can add any further information to help clear any confusion. Thank you.
Further to this, I can see the machine in the list of computers in the Activity tab. If I go to the properties of the computer, the WinGate username is Guest even though the AU is completely different. This is what I think is the crux of my issue.