Mac - Error message: Airport does not have an IP address..

October 2017



Issue


I am having a connection issue with my Mac, the following error messages are displayed:
Airport is does not have an IP address and cannot connect to the internet , followed by Airport has the self-assigned ip address and will not be able to connect to the internet". What can be done?

Solution

  • Go to System Preference > Network
  • Click on the Setup button at the top go to Edit Configurations
  • Click the + button to add a configuration. Remove the old configurations using the - button.
  • Set Airport to the top of the list in the left sidebar (Click on the small gear icon > Set the order of service > drag Airport to the top of the list.
  • In the left sidebar select: "Wi-Fi"

Then in the right pane:
  • Network Name > Check if the name of your network is present.
    • Check the "Request to connect to new networks"

Go to the Advanced tab at the bottom right:
  • In Wi-Fi
    • Drag your preferred network at the top of the list.
    • Delete unnecessary networks clicking on the - button.
    • check the "Remember the networks....." and clear the other check boxes
  • Verify that the security mode is properly configured (WPA, WPA2, WEP...depending on your how your access point is configured)
  • In TCP/IP,
    • Configure IPv4 = "Use DHCP"
    • Configure IPv6 = "Automatic"
    • Leave the other field empty
  • In DNS:
    • Leave the field empty
  • In WINS
    • Leave then default settings
  • In 802.1X
    • Only check the box "Enable automatic connection"
  • Proxy
    • Check "Use Passive FTP (PASV)" only.

Save your settings and try to connect again.

Thanks to Sanspseudo for this tip.
Published by deri58. Latest update on December 7, 2012 at 08:00 AM by deri58.
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