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Cannot RDP to Servers using ATT Wireless Card.

I have a Lenovo Laptop running Windows7 x64. Using the 3g sim within the laptop I can connect to the internet, browse internet sites, and connect to my Cisco VPN router. But I cannot connect to any resources within the domain, or ping anything behind the router. I can from every other device connecting to that vpn router so I know that the router is configured correctly. If I connect to a local wireless source and then connect to the vpn I have complete access.
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John Meggers
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We need to see the router config.  There's most likely a NAT issue or a routing issue.  
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p_nuts
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I am using 5.0.07.0290

The router config works for all clients. This Cisco client works with Win7 64 when I am connected using wireless, or locallly wired ethernet. It doesnt work with the ATT Sim inside the laptop or when tethered to my iphone.

I get lots of other ports. ATT says that they are not port blocking and that is true because when I tether to my XP laptop it in fact does work. It is the combination of Win 7 64, ATT Wireless, and the cisco VPN.

I tried Shrewsoft but I am having trouble configuring it to match the setup to be recognized by my Cisco VPN router. Their documentation is lacking some meat on this. Anyone know where a sample config might be that would address the psk, group, and authentication?

Thank you in advance.