Vista sees multiple networks in network center

April 2010.
I found the unidentified network was a few persistent routes
Drop to a command prompt


in normal situations you should only have 1 Persistent route

this is what I had
Persistent Routes:
Network Address Netmask Gateway Address Metric Default Default

I simply used ROUTE DELETE
disabled and enabled my NIC and all went back to normal.

you may need to delete any IPV6 routes also.

You would think that microsoft would have the stupid diagnose tool
actually investigate the routing table!