[Vista] Unidentified network

[Federation]

Hello. Today my step sister came to me and told me her laptop wouldn't connect to the internet. When I came to it, it said 'local only' and Unidentified network in network & sharing center.
I googled 'Unidentified network vista' and got a few results but none of them actually applied to this case. The laptop was previously taken to a technician to try and be fixed and it connected to the technicians internet fine... which means it only happens on this network.
There are around 3-4 other computers connected to the network and they aren't having any problems so it's obviously something to do with this PC.

I looked in device manager to see if it didn't have some drivers and it didn't so I updated them.. and it still doesn't work so I take it that it isn't a driver problem. I also checked to see if it was set to DHCP and it was.

Anyone have any ideas?

[DejaVu]

Sounds like the DHCP is not finding a valid IP address.

Specify one on the same IP ranges as the router and see if that connects.
I never use DHCP for that exact reason.

If that doesnt solve it reinstall the LAN/WLAN driver...

If all else fails - Ditch Vista (shocked she still has it!) and upgrade to Windows 7!

[TotallyRandom]

Its a connection issue with the router.

can be a number of things.
Firstly restart the router.
Check IP settings are auto. (Wireless adapter > Support)
Delete and recreate the wireless profile. (Network Centre > Profiles delete)
Scan again and connect to the router put in Key.

if you need me to elaborate on any of the above just let me know

[Wompastompa]

run cmd in elevated mode (right click and run as administrator)

then type: netsh winsock reset

see if this helps