Connection problem App Store in a specific device

Hi guys,.

as of today, I have a problem with the App Store on my iMac. I can not connect, but I don't have the same problem with my MacBook Air.

Even if I connected without problems in iTunes on my iMac.

App Store does not recognize my credentials and can't leave my camera.

I tried to change the password, but the question is always, always only on iMac.

Can someone help me, please?

Thanks in advance.

Eleonora

Please, back up all data before proceeding.

Step 1

Triple-click anywhere in the line below on this page to select this option:

/Library/Preferences/SystemConfiguration/NetworkInterfaces.plist

A right click or Ctrl-click on the line and select

Services ▹ reveal in Finder (or just to reveal)

of the contextual menu.*, a file must open with a selected item. Move selected item to the trash. You may be prompted for administrator login password. Restart the computer and test.

If there is no change, repeat with this file:

/Library/Preferences/SystemConfiguration/com.apple.network.eapolclient.configuration.plist

* If you do not see the item context menu copy the selected text in the Clipboard by pressing Control-C key combination. In the Finder, select

Go ▹ go to the folder...

from the menu bar and paste it into the box that opens by pressing command + V. You won't see what you pasted a newline being included. Press return.

Sign out and sign test. If there is no improvement, continue.

Step 2

Reset the PRAM from your computer.

Tags: Mac App Store

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