What if the Mac doesn't even have wifi?

What if the Mac computer suddenly doesn't have WiFi? Small knitting used so long Mac, this situation is also a lot of times, this problem if not because of the Apple wireless network hardware failure, the basic can be eliminated by the solution to solve the problem, the main solution is from the router overheating caused network congestion, IP address conflict , system bugs lead to these aspects, the following PC6 small series to introduce the relevant steps to solve:

　First step, restart the Mac wireless network card

Click on the top wireless network icon in the desktop, click "Turn off Wi-Fi" in the dropdown menu, and then use the same method, click "Wi-Fi: On" in the Pull-down dish and restart the wireless network card

　Step two, restart the router

Long time to open the router, it is possible to cause the router overheating, you can try to shut down the router, static for a period of time, and then connected to the router power, may be resolved.

Step three, reboot the system

If the problem persists, reboot the system and try to see if the problem can be solved.

　Step fourth, remove unwanted wireless networks

Because the wireless network signal is in the same frequency band, also may cause the Mac not to have the WiFi problem, at this time, we can eliminate the useless WiFi the way, solves this problem

Step one, click the top wireless network icon, and select "Open Network Preferences" from the dropdown menu.

Step two, in Network preferences, go to the advanced option.

Step three, select the other unused WiFi name and click-to remove the unwanted network.