To fix the problem that has come up in which the UVM VPN Client stops connecting after Windows XP Service Pack 2 has been installed, follow these instructions.

Go to your Start Menu, Accessories, System Tools, Security Center:
Click on the Windows Firewall Button.
Click on the Exceptions Tab.
Click 'Add Port' a total of three times adding the following values:

Name: TCP
Port Number 10000
TCP Radio Button

Name: UDP
Port Number 4500
UDP Radio Button

Name: UDP
Port Number 62515
UDP Radio Button

Click OK

The VPN Client should now connect.