If your wireless network card is not working correctly, there are a few different things you can do to troubleshoot the issue.
First, check to make sure the card is physically connected to your computer. The wireless card needs to be properly inserted into the appropriate slot on your computer’s motherboard in order for it to function properly. If the card is not properly inserted into the slot or if the connection is loose, it won’t be able to connect to a wireless network.
Second, check if the drivers for the wireless network card are up to date. If the drivers for the card haven’t been updated for some time, they could be causing the card to not work correctly. To check if you have the latest version of the drivers, open the Device Manager and find the network card. Right-click it and select “Update Driver”. Then follow the prompts to install the latest version of the driver for the card.
Third, restart your computer and modem/router. In some cases, a simple restart can resolve the issue as it refreshes the connection between the computer and the router. To restart your computer, just press and hold the power button until it turns off and then turn it back on. To restart your modem/router, unplug the power source and plug it back in after 10 seconds.
Fourth, check the settings on your wireless router. Make sure that the security protocols and encryption methods used by the router are compatible with the network card. If not, this could be causing the issue. You should also double-check that all passwords are correct as well.
Fifth, check if the issue is with the card or the router. To do this, try connecting a different device to the same wireless network. If the other device has no issues connecting, then the issue is most likely with the card itself. If the other device also has trouble connecting, then the issue is most likely with the router.
Finally, if you still haven’t been able to resolve the issue with any of the steps outlined above, you may need to replace the card. Depending on the type of card, you may be able to purchase a new one from the manufacturer or from a computer store. If the card is integrated into the computer’s motherboard, then you may need to consult with a technician to determine the best course of action.