No Airport card installed, mac os 10.5.8

[starbuckcute]

Please help me, suddenly my macbook unable to connect to wifi. It show "No airport card installed".
My job really need wifi. What can I do ? I restart several times but fail, now I'm using Lan cable to connect to my macbook.

 

[ApolloBoy]

It could be that your Airport card has failed or maybe an antenna managed to work itself loose from the card.

Also, why are you still using Leopard in this day and age? Depending on the age of your MacBook, you could upgrade to Snow Leopard, Lion, or even as high as El Capitan.

 

[bunnspecial]

If it says "No Airport Installed" it means that either the internal card has failed(as suggested above) or that it has worked loose(a loose antenna would just result in no networks found). Assuming you have a C2D model, the AP card is easily accessible by removing the top case.

https://www.ifixit.com/Guide/MacBook+Core+2+Duo+AirPort+Card+Replacement/519

If the card is bad, they generally run a few dollars a piece on Ebay.

I agree also on upgrading the OS. Software support for Leopard on Intel processors is minimal these days-Snow Leopard is much better and all "classic" Macbooks are capable of running it. Lion has its ups and downs, but all C2D Macbooks can run it.