After a few more months of this I have noticed that this happens when connected to the VPN or not connected to the VPN and it also happens when removing all the roll-up Fences.
I have the software installed on two different computers and it happens on both.
I get stuck on my desktop with the mouse pointer loading and it often returns an error saying: "Fences has detected that Explorer was not closed correctly....".
I hope you can help me as it is a very useful program that I would like to use without constant problems.
Thank you very much in advance.