Apple mac system can not connect to the wifi solution

Apple mac system can not connect to the wifi solution. Mac can not connect to wifi how to do? Some users said that suddenly after awakening or wake up mac can not connect to wifi, how to solve it? I hope the following is a small series brought Apple mac system can not connect to the wifi solution, I hope to Help everyone.
Apple mac system can not connect to wifi solution:
First, open the Finder of the Mac; Second, click the "Files" menu, select "New Finder window";

three Click on the sidebar icon of your Mac in the device list;

four, open the Macintosh hard drive;

five, open the resource library;
six, find in the resource library “ Preferences & Folders;

Seven, click to enter the folder to find the file named "com.apple.Bluetooth.plist";

eight, move it to the desktop, so Just make a copy; Nine, delete the file from the Preferences folder, the Finder needs to enter your password to allow changes.
After restarting the Mac, this problem should be solved. If it is not resolved, then consider whether your Mac has hardware problems.
This is the Apple Mac system that Xiaobian brought to everyone can't connect to the wifi solution.