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Helpful answers
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Sep 17, 2015 2:02 PM in response to Fedex2403by Linc Davis,★HelpfulIf you've enabled two-step verification for your Apple ID, you must generate an application-specific password and enter it when you sign in to the App Store.
If you've ruled out the password as the cause of the problem, back up all data and see below.
Triple-click anywhere in the line below on this page to select it:
/Library/Preferences/SystemConfiguration/NetworkInterfaces.plist
Right-click or control-click the line and select
Services ▹ Reveal in Finder (or just Reveal)
from the contextual menu.* A folder should open with an item selected. Move the selected item to the Trash. You may be prompted for your administrator login password. Restart the computer and test. If there's no change, restore the item you deleted from a backup, overwriting the one that may have been created in its place. Otherwise, you may need to recreate some of your settings in the Network preference pane.
*If you don't see the contextual menu item, copy the selected text to the Clipboard by pressing the key combination command-C. In the Finder, select
Go ▹ Go to Folder...
from the menu bar and paste into the box that opens by pressing command-V. You may not see what you pasted because a line break is included. Press return.
Credit for this solution to ASC member luis.pinho.
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Sep 17, 2015 2:09 PM in response to Linc Davisby Fedex2403,Ok, now it gives me only the first error, but it always doesn't work!
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Sep 17, 2015 2:41 PM in response to Fedex2403by Linc Davis,Launch the Console application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad and start typing the name.
The title of the Console window should be All Messages. If it isn't, select
SYSTEM LOG QUERIES ▹ All Messages
from the log list on the left. If you don't see that list, select
View ▹ Show Log List
from the menu bar at the top of the screen.
Click the Clear Display icon in the toolbar. Then take an action that isn't working the way you expect. Select any lines that appear in the Console window. Copy them to the Clipboard by pressing the key combination command-C. Paste into a reply to this message by pressing command-V.
The log contains a vast amount of information, almost all of which is irrelevant to solving any particular problem. When posting a log extract, be selective. A few dozen lines are almost always more than enough.
Please don't indiscriminately dump thousands of lines from the log into this discussion.
Please don't post screenshots of log messages—post the text.
Some private information, such as your name or email address, may appear in the log. Anonymize before posting.
When you post the log extract, you might see an error message on the web page: "You have included content in your post that is not permitted," or "The message contains invalid characters." That's a bug in the forum software. Please post the text on Pastebin, then post a link here to the page you created.
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Sep 20, 2015 1:22 PM in response to Linc Davisby Fedex2403,Hey, I solved this problem restoring my Mac, but I want to ask you another thing: when I startup my Mac the Dock doesn't work and when I put the arrow of the mouse on an icon on the Dock, it doesn't pop out the application name. Can you help me please?
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Sep 20, 2015 1:31 PM in response to Fedex2403by Fedex2403,I'm actually using Mavericks because I restored my Mac, but this night I will download and install Yosemite.

