Mac Lion and Cisco VPN client problems

I just installed Lion 10.7 on my iMac and can no longer use the downloaded Cisco VPN client to connect to Microsoft Remote Desktop and access the PC in my company's office. When I try to launch the VPN client I get Error 51. I used to be able to enter a command in the Terminal as a workaround to use the VPN client when that happened, but that no longer works. I have tried booting into 32-bit mode; doesn't work. I tried to use the Cisco client built into Lion using settings provided by my company. When I try to connect I get the following message: "The negotiation with the VPN server failed. Verify the server address and try reconnecting."
I have searched the web looking for a solution. My company's tech department is stumped; the Apple Geniuses haven't been able to help. Does anyone have any ideas how I can use either the downloaded Cisco VPN client or the client built into Lion?
Sent from Cisco Technical Support iPad App

Here is the link which you can use to configure the inbuilt VPN client in MAC Lion.
http://glazenbakje.wordpress.com/2011/07/28/how-to-create-a-cisco-vpn-connection-in-apple-mac-os-x-lion/
Make sure you configure the attributes correctly.
Secondly the inbuilt VPN client code of Lion is made in collaboration with Cisco so there will not be any issues of compatibility.
Cheers,
Rohan

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2: Ext: GigabitEthernet0/2 : address is c84c.75da.9a5a, irq 9
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VPN-3DES-AES                 : Enabled
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GTP/GPRS                     : Disabled
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Sent from Cisco Technical Support iPad App

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Mac Lion and Cisco VPN client problems

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