Restarting Cisco VPN Subsystem on OS X
// June 9th, 2009 // Mac, Work
If you’re like me and you use your MacBook Pro for work, it might stand to reason that you have to VPN into your work network. If so, it also may be a good chance that you use the Cisco VPN client and have run into this annoying message:
Error 51: Unable to communicate with the VPN subsystem
Thankfully, the solution is rather simple. Open up your favorite terminal client and simply type:
sudo /System/Library/StartupItems/CiscoVPN/CiscoVPN restart
Enter your password and it’ll restart the subsystem. Then just re-open the Cisco VPN client and you’re golden.
