I have a macbook running OS X 10.7.2. I run windows xp as virtual machine using vmware fusion 4.0.2. Recently I updated OS X to 10.7.3 and network does not work anymore on the windows xp virtual machine, any ideas?
Try modifying your VM's .vmx config:
How-to from here:
The changes made to the .vmx do not take effect until the next time Fusion is opened (quit it first, if it is currently open). Alternatively, double-click the .vmx file to apply the changes and open the virtual machine immediately.