I had this error code pop up and my VPN refused to connect. I unistalled the program and reinstalled it and it still did not work. I rebooted the computer, and even located and removed old registry information. I went through countless articles trying identify the problem and it seemed that nothing worked. My internet worked fine with no connectivity issues. After spending several hours losing my mind I found the fix for this. I simply re-booted my internet modem. After the modem finished its re-set the VPN connected without any problem. I thought I would pass this along for those of you seeing this error code. Im not a tech savvy guy and perhaps this will help others like me. Good Luck!