Trying to Accomplish: Connect my iPad, MacBook Pro, and iPhone to my iMac. Specifications: Mavericks Server 3.1.2, iMac 27 Late 2013 Mavericks 10.9.4 I've followed this video to the tee and keep getting this error message (The L2TP-VPN server did not respond. Try reconnecting. If the problem continues, verify your settings and contact your Administrator.) when trying to connect from any of the devices with my appropriate credentials. Everything looks correct in the server app. All system and server updates. All ports opened in my airport extreme. Does any one have a clue?