I have a Dell Latitude XT with an embedded Dell Wireless 5720 modem. When I am connected to the internet through my wireless router at home, I can establish a VPN and have no problems connecting to my company network and stay connected. However, when I connect to the internet via the broadband wireless modem, establish a VPN connection to my company, the VPN and the broadband will disconnect after about two minutes. The broadband will not disconnet if I am just on the internet but as soon as I establish the VPN, it disconnects. I am using the Windows XP native VPN client to establish the VPN. Any ideas what is going on?