Failed to find mac address 00:60:73:xx:xx:xx in the system interfaces table - 1

When I try to connect to Sonicwall PRO 2040 vpn appliance using GVC (Sonicwall global VPN client) I get the error below

• The peer is not responding to phase 1 ISAKMP requests and
• Failed to find mac address 00:60:73:xx:xx:xx in the system interfaces table

After reasearching this issue and spending coutless hours with support from sonicwall this is where I am...

• Reinstalled the client with admin id - Did not work.
• Turned off firewall and anitvirus - Did not work.
• Download their tool to uninstall and reinstall the sonicwall client and change the virtual mac address - Did not work.
• Updated the physical NIC card drivers - Did not work.
• Installed the older version of GVC from sonicwall website as suggested by the tech support - Did not work.

 At this point I am open to any suggestions out there. My OS is windows 7 and I am able to connect with a different machine from my home network so I am sure its not my router of ISP connection as suggested by the tech team.

I will update this blog if I find a solution.