Error 51: Unable to communicate with the VPN subsystem : RichMercer.com

Error 51: Unable to communicate with the VPN subsystem Thursday, January 22 2009

Every now and again, I get the following message when starting the Cisco VPN Client on my iMac:

Error 51: Unable to communicate with the VPN subsystem

It turns out there is an easy way to fix the error. Simply open a Terminal window and type the following:

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

It will ask you to enter your password then it will restart the VPN subsystem and you should then be able to run the VPN Client with no more errors (once or twice I’ve had to run this comand a second time before it would work).

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30 comment(s) so far

Menteri Agama RI wrote on January 23, 2008

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Vladimir Khontol wrote on January 23, 2008

Wow, I thought it was so difficult to solve, but after read your explanation, I can see that's pretty easy. thanks for informing.

michael wrote on January 23, 2008

Thanks a lot. I really appreciate it. Your tip helped me to get rid of one of the most annoying things in VS.

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