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6 Easy fixes for self-assigned IP address issue on Mac

Self-assigned IP address issue on Mac

macOS users often experience a self-assigned IP address issue that allows the network interface to create an ad-hoc connection, if necessary. This means, even though you have working Wi-Fi, the internet not working messages will keep popping up.

Your system will create an ad-hoc network only if they find the hardware but have issues communicating with the DCHP server to obtain your IP address. The issue lies within the system’s Firewall configuration problems, and there are many ways to resolve it.

Let me show you a step-by-step guide on how to fix the self-assigned IP address issue on Mac.

Method 1: Reset your network preferences on Mac

  1. Launch Finder.
  2. In the menu bar, click Go → Go to Folder.In the Mac menu bar click on  Go and then Go to Folder
  3. In the pop-up window enter the mentioned line: /Library/Preferences/SystemConfiguration/
  4. Delete these files: (add 04)
    com.apple.airport.preferences.plist
    Networkinterface.plist
    preferences.plistDelete these files from System Configuration on Mac
  5. Restart your Mac.
  6. Log in and connect to your Wi-Fi network.
  7. Go to the TCP/IP setting again and check the router files.

After your Mac restarts, you should be able to find the deleted files in your folder.

Method 2: Renew DHCP Lease on macOS

  1. Click on the Apple logo.
  2. Go to “System Preferences.”
  3. Find and go to “Network” settings.
  4. Select Wi-Fi or Ethernet. Mostly, these options are selected by default.Select Wi-Fi or Ethernet in Network settings on Mac
  5. Click the “Advanced” button. (add ss9)
  6. Go to the TCP/IP tab.Go to the TCP/IP tab in Advance options on Mac
  7. Find and click the “Renew DHCP Lease” button next to  IPv4 Address line.
  8. Click “OK.”

After the lease is renewed, check if you’re able to connect to your network. If that does not help, we will try creating a New Network Location and renew the lease.

Method 3: Create a new network location

  1. Click the Apple logo.
  2. Go to “System Preferences.
  3. Find and go to “Network” settings.
  4. Next to “Location,” click the drop-down menu.Next to Location click drop-down menu from Mac Network settings
  5. Click “Edit Locations.”
  6. Click the + icon to add New Location.Click on the + icon to add New Location on Mac
  7. Name the New Network Location.
  8. Click Done.
  9. Select Wi-Fi or Ethernet. Mostly, these options are selected by default.
  10. Click the “Advanced” button.
  11. Go to the TCP/IP tab.
  12. Find and click the “Renew DHCP Lease” button next to  IPv4 Address line.
  13. Click OK.

Try connecting to your network after renewing the lease.

When you try to perform configuration changes to the system, your Mac’s Firewall experiences configuration issues. Let’s fix this problem by resetting the Firewall.

Method 4: Reset the Firewall on your Mac

  1. Launch Finder.
  2. In the menu bar, click Go → Go to Folder.
  3. In the pop-up window, enter in: /Macintosh HD/Library/Preferences/
  4. Delete the following file: com.apple.alf.plist
  5. Restart your Mac.

After your system boots, it will ask you to allow access to numerous programs and services. You may choose to allow access to numerous programs and services depending upon your choice. Try connecting to your network then.

Method 5:  Set Service Order from Mac’s network settings

  1. Click the Apple logo.
  2. Go to System Preferences.
  3. Find and go to Network settings.
  4. Click the gear icon at the bottom.
  5. Click Set Service Order.Set Service Order from Mac's Network settings
  6. Drag services to the top of the list

If you’re using Wi-Fi, drag and drop Wi-Fi to the top.

Method 6: Change DNS servers on macOS

  1. Click the Apple logo.
  2. Go to System Preferences.
  3. Find and go to Network settings.
  4. Select your Wi-Fi or Ethernet. Usually, they are selected by default.
  5. Click the Advanced button.
  6. Go to the DNS tab.Go to the DNS tab from advance Network settings on Mac
  7. Click the + icon.
  8. Add these numbers:
    8.8.8.8
    8.8.4.4
    1.1.1.1
    9.9.9.9
  9. Click “OK.”

If you’re still having problems, get in touch with the Apple Support team.

Solved: How to fix self-assigned IP address issue on Mac

Which one of these methods worked the best for you? Let me know in the comments. If none of these methods work, you may contact Apple Support.

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