Cicso VPN client for Mac OS 10.5

[k-e.svensson]

I keep getting "error 51: unabel to communicate with the VPN subsystem."!! does someone know why and what to do to gett it to work again?

[darrylbell]

I am getting the same error. I'm not by any means a MAC guru, but have tried separate clients. Non of the five MAC users in my organization have been able to authenticate, and are all getting the same error:51 message.

[lemaclover]

Problem: Just got a new IMAC with System 10.5.4, now my Cisco VPN doesn't work. I had my files professionally transferred, vpn worked on my other IMAC, now it doesn't (Error 51). I downloaded vpnclient-darwin-4.9.01.0100-universal-k9.dmg, this version didn't work either (Error 51).

I have tried everything from repairing permissions to entering code in my terminal and still get the error. Any solutions to this frustrating problem? I have spent hours looking for solutions and rely on my VPN for work, so I need help fast!

Thanks to anyone with advice.

[vances16]

Did you get a response to your issue with Cisco VPN and Mac 10.5? I am having the same issue

[k-e.svensson]

nop! No respons from Cisco but i fund help here http://www.anders.com/cms/192/CiscoVPN/Error.51:.Unable.to.communicate.with

and here

http://www.helpdesk.ugent.be/vpn/en/akkoord.php