I use Juno Pulse to VPN to work. I use the client and not the built in Juno Pulse VPN from within Windows. I've been told we would need to update our info-structure for the built in Juno Pulse to work. The Juno client is dependent of you virus protection. When I got Windows 10 it didn't work with Norton but now it does.
I got the client from work and installed as a desktop app and it did in Windows 8.1 and Windows 7.0.