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Cisco VPN - Fix for Error 51: Unable to communicate with the VPN subsystem

wildweaselmi
in Other Apple Software

Featured Replies

If you are running Cisco's VPNClient on Mac OSX, you might be familiar with (or tormented by) "Error 51: Unable to communicate with the VPN subsystem". The simple fix is to quit VPNClient, open a Terminal window, (Applications -> Utilities -> Terminal) and type the following:




sudo /System/Library/StartupItems/CiscoVPN/CiscoVPN restart



and give your password when it asks. This will stop and start the "VPN Subsystem", or in other words restart the CiscoVPN.kext extension.


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