Alright. Well, here's some info I swindled from Microsoft's Knowledge Base
Check if network related services are up and running
a. Click Start, type services.msc and hit enter.
b. From the list of services, double click on "Function Discovery Provider Host" service, change the startup type to automatic and start the service.
c. Apply the changes.
d. Restart the computer and check if the issue persists
If that doesn't help, let me know, and I'll suggest something further.