Self-Assigned IP Address Error on Mac

If the internet isn’t working on your MacBook or Mac mini due to the Self-Assigned IP Address error, you should be able to get the internet connection back on your Mac using the troubleshooting steps given below.

Self-Assigned IP Address on MacBook

In a typical case, the MacBook, Mac Mini, or iMac appears to be connected to the network (WiFi or Ethernet), but webpages fail to load and the Self-Assigned IP error appears.

As the phrase “Self-Assigned IP Address” suggests, the cause of this issue is that your Mac is assigning itself an invalid or incorrect IP address.

Fortunately, in most cases, the Internet not working issue on Mac due to “self-assigned IP address” can be easily fixed.

1. Switch the modem/router off and on again

Before proceeding with other methods, unplug the modem/router from the power supply > wait 60 seconds and reconnect the modem/router to the power supply.

If this fix works, the internet should work properly on your Mac as it will start using a valid IP address on both WiFi and Ethernet networks on your computer.

2. Renew DHCP lease

If your Mac appears to be connected to Wi-Fi or Ethernet but you still can’t connect to the Internet, renewing the DHCP lease on your computer should fix the problem.

1. Click on Apple Logo in the top menu bar and select System Settingsā€¦ in the drop down menu.

Open System Preferences on Mac

2. On the System Settings screen, click network Symbol.

Network option in the System Preferences screen on Mac

3. On the network screen, select your network (ethernet or Wireless Internet access) in the side menu and click Progressive.

Advanced option in Network Preferences screen on Mac

4. Switch to on the next screen TCP/IP tab and click Renew DHCP lease Button.

Renew the DHCP lease option on the Mac

5. Click on OK to save the changed settings.

After the DHCP lease is renewed, you should be able to connect to the internet without experiencing the Self-Assigned IP Address error on your Mac.

3. Delete PLIST files

The “No Internet on Mac due to a self-assigned IP address” issue can be fixed by removing certain files related to the network connection on your computer.

1. Click on that Finder icon in the taskbar > click on the walk tab in the top menu bar and select Go to folder option in the drop down menu.

Open Go to Folder on Mac

2. In the Go To window, type /Library/Preferences/SystemConfiguration/ and click the walk Button.

On the Mac, go to the /Library/Preferences/SystemConfiguration/ folder

4. In the System Configuration folder, delete the following folders (right-click the Binder and move it to the trash).

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

Note: Your Mac will automatically create the above folders when it restarts.

5. shut down the MacBook > wait 30 seconds and Start anew Restart your Mac and see if you can now connect to the internet.

4. Define service order

Make sure your Mac always connects first to the network type (Wi-Fi or Ethernet) that you primarily use on your device.

1. Click on Apple Logo in the top menu bar > system settings > network Symbol.

Network icon in the System Preferences screen on Mac

2. On the network screen, click gear icon (Network Services column). Define service order option in the drop down menu.

Insert the tab

3. In the service order window, drag your preferred network (WiFi or Ethernet) to the top position.

Choose the preferred network type on Mac

4. When you’re done, click OK to save the changes.

5. Create a new network site

If you still can’t connect to the internet, create a new network location on your Mac and renew its DHCP lease.

1. Click on Apple logo in the top menu bar > system settings > network Symbol.

Open Network Preferences on Mac

2. From the network screen, open the location menu and select Edit Locations Possibility.

Edit network locations on Mac

3. On the next screen, click the plus icon to add a new location.

Add network location option on Mac

4. On the next screen, type a Surname for the new network location and click Finished.

Name the New Network Location option on the Mac

5. After creating the new location, select either Wireless Internet access or ethernet in the side menu and click Progressive.

Advanced option in Network Preferences screen on Mac

6. Switch to on the next screen TCP/IP tab and click Renew DHCP lease.

Renew the DHCP lease option on the Mac

7. Click on OK to save the new settings.

This should surely fix the self-assigned IP address issue and restore network connectivity on your Mac.

6. Go to Google DNS

If your Mac has frequent network connection problems, the problem might be that your ISP’s DNS servers are busy and congested.

To fix this problem, you can switch the DNS servers on your Mac to Google DNS or Open DNS.

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