Thank you for the input. Sorry a bit new to this so just trying to understand it fully.
I checked the config on the controller and they point to a single VIP address and have checked on clearpass and their is a VIP configured between the two nodes.
So is the following process correct:
1. Shutdown the publisher from GUI
2. Check the accounting logs and see if radius requests are still going through. (Being logged in VIA the VIP)
3. Leave it running for a while and see if everything is working normally
4. Restore the server from the server configuration
5. watch it come back up as the publisher
6. check accounting logs to see if everything is working normally.
Please let me know if that is the correct process or if I have missed anything.