Mac OS X: WLAN no longer works - what to do?

In this practical tip, we will show you what you can do if your WLAN no longer works under Mac OS X.

Wi-Fi is no longer possible on Mac OS X - you can do that

Follow the instructions below to use the WiFi again:

1. First, check if there are updates for your Mac. If so, install it.
2. Make sure that the cabling on the router is correct and that all cables are secure.
3. Disconnect the router's power supply for about 30 seconds. Then try to connect again.
4. Make sure that the router's firmware is up to date.
5. Connect a LAN cable for testing. If this also does not work, either your router or the network card is defective.
6. Try connecting another device to your router. If that doesn't work either, your router is defective. Otherwise, the problem is with your Mac.
7. In this case, find an Apple partner who can replace the defective network card.

This practical tip is based on Mac OS X. In the next practical tip you will learn how to set up a WLAN printer on your Mac.