SymptomsAfter upgrading to Parallels Desktop 6, there is no internet connection in Windows XP. The driver for the network adapter cannot be installed even if Parallels Tools are installed.
CauseMost likely, your virtual machine is running Windows XP but is configured as Windows Vista or Windows 7. This causes different network adapter types for your virtual machine to be emulated and the driver will not install.
ResolutionTo resolve this issue please do the following:
1. Open virtual machine configuration and change the OS type for your virtual machine to the correct one - Windows XP
2. Switch to Hardware tab and in Boot order section insert the following string under boot flags:
3. Click OK to save and close configuration. Then, start the virtual machine and install the network adapter (if it is not installing automatically)
Additional informationIf you have different issue with networking or using Windows Vista/7, please refer to the following article: