AT&T Network Client and Virtual Machines

Virtual machine software, such as VMware, VirtualBox or Microsoft Virtual PC, will setup "bridge" networking drivers that allow them to connect to the Network through your PC. These drivers can conflict with the AT&T Network Client VPN drivers in Windows XP and prevent it from passing network traffic over your VPN. The AT&T Network Client can still make a connection successfully. However, it will not pass traffic over your VPN.

Here are the steps to correct this issue.

1. Open Network Connections in the Control Panel.
2. Right-click the AGN Virtual Network Adapter and select properties.
3. Uncheck any of these bridge network drivers.
   • VMware Bridge Protocol
   • VirtualBox Bridged Networking Drive
   • Virtual Machine Network Services (for Microsoft Virtual PC)

You may need to repeat this each time you update any of these VM applications, as they tend to re-enable the settings during updates.