At times, Mac assigns itself an IP address, which prevents the Internet from working. Even if the computer is connected to Wi-Fi network, you won't be able to use the Internet. To fix Internet not working error due to the self-assigned IP address on Mac, you will have to wipe out some files.

Don't worry the process isn't quite lengthy and works reliably. The other day, I encountered this same issue and was able to troubleshoot it by following this trick.

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Internet not Working Due to Self-Assigned IP Address on Mac-How to Fix

How to Fix Self-Assigned IP Address Issue on Mac running macOS High Sierra or Later

Step #1. Launch finder on your Mac.

Step #2. Now, click on Macintosh HD.

Step #3. Now, you need to click on the Library folder and head over to Preferences.

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Click on Library in Mac Hard DiskClick on Preferences Folder on Mac

Step #4. Next, click on the System Configuration folder.

Click on System Configuration in Mac

Step #5. Next up, you have to move the following files in the trash.

  • com.apple.airport.preferences.plist
  • com.apple.network.identification.plist
  • NetworkInterfaces.plist

Note: In case these above files are there, delete the similar files that are available.

Internet not Working Due to Self-Assigned IP Address on Mac

Step #6. Finally, restart your Mac.

Note: If Macintosh HD is not available in the Finder sidebar, click on the Finder menu → Preferences → click on the “Sidebar” tab → Under “Show these items in the sidebar” click on “Hard disks.”

Click on Preferences in Finder on Mac

Click on Sidebar in Finder Preferences on Mac

Show Hard disk in Finder Sidebar on Mac

That's done!

After your computer has restarted, self-assigned IP address issue will be gone, and you will be able to use the Internet without any problem.

Wrap up:

Has this tricked worked in fixing the problem? Having your feedback in the comments below would be great.

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Jignesh Padhiyar is the founder of iGeeksBlog.com who has a keen eye for news, rumors and all the unusual stuff that happens around iPhone and iPad.