Sony Vaio Wireless Network Connection problems

I have a sony vaio VGN-NR32M laptop. I have been able to connect to the internet using the internal wifi LAN but for some reason it has stopped working.
When I start the laptop the wireless LAN green light comes on at the front of the laptop for a few seconds when it is booting, than the light goes out.
The error message always reads ' Turn on wireless capability'.
But it is turned on!!
CAN ANYONE HELP?
Thanks

Hi!

Did you fixed this? I have the same problem with my VAIO. It was working fine and then, one day, it wouldn't detect any networks.
Led light was on and in Device Manager wireless adapter is installed and working correctly.. I know my network is working fine because my husband can conect to it.

Next day the led light went off even if the swich is turned on and the error message ask me to turn on wireless capability.

I don't know what to do next!

FIXED!!!!!
I know how frustrating is to look for help and find a lot of people asking and no answers, so this is how I fixed it:

I went to the sony support website. There they have some instructions about how to troubleshoot a wireless LAN connection issue.

What it worked for me was to Reinstall the original wireless adapter driver. Uninstall the driver from device manager and reinstall it from the VAIO Recovery software.
Here you have the instructions:

Follow this procedure to remove a device from Device Manager.
1. Click the Start button and then click Control Panel .
2. In the Control Panel window, click System and Maintenance .
3. In the System and Maintenance window, click Device Manager .
NOTE: If prompted for an administrator password or a User Account Control prompt is displayed, type the appropriate password or click Continue .
4. In the Device Manager window, double-click the category icon of the device to be removed.
5. Under the Device Manager category , click to select the device to be removed.
6. On the menu bar , click Action .
7. On the Action menu, click Uninstall .
8. In the Confirm Device Uninstall window, click the OK button.
9. In the Device Manager window, click the X in the upper right corner to close the window.
NOTES:
o When the computer restarts, the operating system will find the device and install the driver.
o If the operating system is unable to automatically find the driver, download and install the desired driver from the Sony® eSupport Web site at Sony eSupport - Electronics.

I did that, and after restarting the computer, the driver auto-installed and everything was ok!

Hope that helps!

thanks kharrol, i tried it for my vaio vgn-nr10e/s and it "quite" worked.
if you tried kharrols method and you didn't get the required result, you could try this:
1. Follow kharrols instructions in reaching the device manager.
2. select the device (the wireless adapter)
3. Right click on the device and disable the device
4. right click on the device again and uninstall it.
5. restart your computer

on restart, the device will be automatically installed and ready to use, if not, enable it from the device manager. that should work.
Dewunmi