I can suggest the following: have a look at the (software) version for the component covpn64.sys (by any means or with getting an f5Report). If it shows v7221 or more recent, I'd suggest you open a Support Ticket for investigation. If it still shows v7220 or earlier, I can suggest we first manually and thoroughly delete the F5 components (before we proceed again with deploying v7.2.3.1). To do that: pls run the CTU/f5wininfo.exe/f5uninstall.exe prgm as admin to uninstall the software. Then, run the same tool again (do feel free to discard the UAC), this time within the context of the usual user.