Solved! Go to Solution.
You can force logoff on connect by setting a registry key.
The registry key is HKEY_CURRENT_USER\Software\Juniper Networks\<Network Connect Directory> \dsNetworkConnect\LogOffOnConnect. If equal to 1, logoff on connect is turned on. If equal to 0, it is turned off. Since it is set in each version of NC, you'll have to put together a process of getting it set when a new release of Juniper code is rolled out.
Well, you were right. For some reason, the registry setting wasn't there on the PC I was using, but other PC's have it. Odd. Anyway thanks for the tip!