Cisco VPN on OS X Error 51
July 12, 2006 – 1:28 pmThis has been driving me nuts for ages, mainly when using a Bluetooth connection to 3G, the damn Error 51 cannot connect to the vpn subsystem with the Cisco VPN client on OS X 10.4. Well this sorted it, open up a terminal and type the following:
$ sudo /System/Library/StartupItems/CiscoVPN/CiscoVPN restart
Then try opening the Cisco VPN client again and the error will go away.
