Hi I think I have solved the problem.  I opened up the laptop and had  a look at the wifi card installed. I made a note of the model and searched the net for drivers. I found the drivers "Intel Proset/Windows and Drivers" and downloaded the software. I restarted the laptop and connected to my router no problem. Everything seems to be running OK now.
Hi everyone.  I have a problem with my wifi.  I recently reinstalled Vista on my Latitude 6400. Everything is fine except I can not get the wifi to work on the laptop. When I turn on the switch on the side the bluetooth symbol lights up ok but no wifi. Using the device manager the adaptor is an intel 82567 card. I have loaded the up to date software for this but no response.  Checking in the properties box it says the device is working properly. In the folder marked other devices there is a network folder. This is empty, there is no information in there at all. Just various messages about the items being missing, not loaded or unavailable. It is possible the card is kaput but it would be a remarkable coincidence for it to give up the ghost at the exact same time I reinstalled vista.At the moment I am using an external wireless adaptor which works fine but I would prefer to use the built in resource. I have searched the Dell and Intel websites without any luck. Any help greatly appreciated.
Network Controller Missing after Vista Installed