We have been doing it for many years successfully. It sounds as if your user-id implementation needs some attention. We chose to use the exchange logs for our user-id since everone has outlook open and the app is constantly checking in. So if a user moved from one office to another, the IP would update.
If you only want a certain AD group to have access to the internet, first create a policy that allows the traffic you want using the AD group as a condition of the policy, then create a policy right after that blocks the traffic. So if a user ID is not mapped, they would not have access.
Hope that makes sense.
Click Accept as Solution to acknowledge that the answer to your question has been provided.
The button appears next to the replies on topics you’ve started. The member who gave the solution and all future visitors to this topic will appreciate it!
These simple actions take just seconds of your time, but go a long way in showing appreciation for community members and the LIVEcommunity as a whole!
The LIVEcommunity thanks you for your participation!