Hi Dlpease,
Welcome to Dell Community Forum.
We are sorry to hear about the issue you are facing with your computer. This problem occurs if a device on the Windows Vista-based computer uses a network bridge to access the network.
Click on the Microsoft link below for a suggested fix to resolve the issue.
Please feel free to contact us in case you require further assistance. We would be happy to help.
Thanks and regards,
Babita S
#iworkforDell
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