DESCRIPTION
In normal use，Sometimes all of a suddenMac WIFI icon turns grey，Then top showing an exclamation mark，Clicking on it you will see that it prompts you "Warn：No Internet connection』，This feature is excellent value，It let you do not need to wait to not open Web page, find lost Mac network connection。
Problem
of course，Bad news here，Sometimes you will find that even the icon appears，Warning letters in there[……]