|"Laptops don't use cards,..."|
The term CARD is frequently mis-used - it isn't a CARD unless it's removable and plugs into a slot or similar that's on the mboard inside the case. Only high end (more expensive) laptops can have a CARD come with it, and if so, it's usually only the video adapter that's on a card.
That said, on the other hand, sometimes the network adapter, more likely if it's wireless, IS on a card, and in that case it CAN be replaced, but you, or someone, usually has to open up the case in order to do that, unlessthere's an access panel you can remove - sometimes it's near where the ram is.
If you tell us the make and model of your laptop, we may be able to find out whether you DO have a wireless networking card or not. The specific model is usually printed on a label on the outside of the case, usually in the bottom of it, or it can be determined on the brand name's web site.
There's probably nothing wrong with the wireless adapter in the laptop, unless you have dropped the laptop or have spilled liquid on it and that got inside the laptop.
Setting up a wireless connection is not as easy as setting up a wired network connection.
If you were getting messages such as "limited or no connection" or similar, it's probably because the settings for the wireless connection are messed up, not because the wireless adapter is defective. The wireless settings on both endsof the wireless connection must be compatible with each other. E.g. if your wireless adapter is using an encryption key or password, whatever you are trying to connect to - usually it's a wireless router - must be using the same key or password.
If there seems to be a problem with the drivers for the wireless adapter (in Control Panel - Device Manager) ,
- go into the laptop's bios Setup and make sure the wireless adapter is enabled.
- if that doesn't help.....
- go to Control Panel - Device Manager - and RIGHT click on the wireless adapter's name, and choose to un-install it - if you are prompted tore-boot, do that - if you aren't, do that anyway.
If you are fortunate, Windows will load the drivers for the wireless adapter properly while booting, and when you look in Control Panel - Device Manager again, it will not be marked as not working properly.
If that doesn't help....
Un-install anything listed for the wireless adapter in Control Panel - Programs and Features, and install the correct drivers again. The correct drivers are listed on the web site of the maker of the laptop in the software or drivers downloads for your model,
OR, if you are the original owner of the laptop, you may have a disk that came with the laptop that has drivers for it and other things on it - install the drivers for that.
If you get messages such as "limited or no connection" or similar after installing the software for the wireless adapter, orotherwise, it's probably because the settings for the wireless connection are messed up, not because the wireless adapter is defective.
We can help you fix that, but you may need to use a network cable temporarily, in order to access configuration settings on whatever it connects to wirelessly.