MAC App Store Update, download failure what to do

Why in the Mac App store update or download the program always fail, I believe many netizens are more or less encountered similar problems, have to say that we also encountered this problem, Baidu and Google on the search for a bit, the approximate solution is as follows, verification can be done.

First step, click on the WiFi icon in the upper right corner, open the network preferences, the effect as shown below (or click on the upper left corner of the Apple "Logo", open System Preferences, which has a "network"):

2. Click on the "Advanced" button above and switch to "DNS" tab, click "+" button, enter "8.8.8.8", click OK and save the settings, then download or update try, should be OK.