I have a Dell Inspiron E1705 laptop + Windows XP that worked fine untill I have updated the WiFi driver. Since then I get exclamation mark on the device and I can't turn on the WiFi.
It had Intel(R) PRO/Wireless 3945ABG , and v11.1 driver, but was occassionally dropping rate, so I decided to update the driver to the latest 11.5. Since then I got exclamation mark on the device and was unable to turn on the WiFi anymore, and when opening its proerties it prompts a message "ADAPTER STATE NOT FOUND IN REGISTRY" and shows that device does not work properly. Installation of the driver to "found new hardware" fails says driver "the system cannot find the file specified". I tried to rollback the driver but it did not help. I tried to reinstall the driver but no help either. Dell technician tried to repeat that and nothing changed. We can see the WiFi card in the BIOS
Dell replaced the motherboard and the WiFi card, and put Intel 4965AGN instead' but it did not help.
I tried using WinsockXPfix that some people suggested' but it did not help. Pressing Fn+F2 or any other way of enabling the WiFi radio did not work.
In the services.msc I see:
Wireless Zero Configuration: | | Status Started | Startup Type: Automatic | Logs on As: Local System
Intel ProSet/Wireless SSO Service: | | Starup: (empty) | Startup Type: Automatic | Logs on As: Local System
Intel ProSet/Wireless Service: |Management service | Starup: (empty) | Startup Type: Automatic | Logs on As: Local System
Intel ProSet/Wireless Registry Service: | Registry | Starup: Started | Startup Type: Automatic | Logs on As: Local System
Intel ProSet/Wireless Event Log: | Event trace messages | Starup: Started | Startup Type: Automatic | Logs on As: Local System
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Ndisuio [Start]= 3
I tried changing it to 2, 1, 0 and to reboot bu no help.
I tried both Dell's drivers & Intel's latest drivers from Intel® Driver Update Utility for Intel® wireless adapters
The BlueTooth can be enabled and disabled via Fn+F2, biut not the WiFi.
Any suggestion other than reinstalling Windows XP would be appreciated.