This reply is not an answer, but is a question about an issue I have that seems related to the above question. I just installed VirtualBox on my computer that is running Windows 7 Professional as the host. I created two vms, each running Windows Server 2003 R2. The two vms are configured to use a bridged network, so that they can communicate with each other and the host. At present, neither is able to connect to the host network, so they cannot communicate with each other, nor can either connect to the Internet. I am not surprised since IPConfig shows no IP address for either vm. I am new to VirtualBox, and I am not a network guy, so I am not sure what is causing the problem.
I checked the network card driver
on each vm, and Windows Server reports this error message:
"This device cannot start. (Code 10)
Click Troubleshoot to start the troubleshooter for this device."
I reinstalled each driver, but get the same error.
The VirtualBox ethernet adapter on my host OS says "This device is working properly.", so I think I have missed some configuration settings.
Does anyone here have any thoughts on what is missing, or incorrect?
Any help is appreciated. Thanks