Ethernet Configuration for Macintosh OS X

Acquiring a new/clean copy of the TCP/IP Preferences folder (optional)

The procedure involves removing the TCP/IP preferences folder. If you wish to keep a copy of your old TCP/IP preferences, you should copy them to another folder other than the Preferences folder or to a disk.

1. Close all windows
2. Click on the MACINTOSH HARD DRIVE
3. Browse to the SYSTEM FOLDER and then to PREFERENCES
4. Find the TCP/IP PREFERENCES and drag them to the trash
5. Close all windows
6. When the TCP/IP settings are opened again, a new preferences folder is automatically created.

Configure new TCP/IP settings

1. Click on the Apple Menu
2. Click SYSTEM PREFERENCES

   

3. Select the Network icon

   

4. In the Network window, set LOCATION field to Automatic
5. The SHOW field should be set to Built-in Ethernet
   If Built-in Ethernet is not in the field, click here for instructions.
6. The CONFIGURE field should be set to Using DHCP (Do not use DHCP with fixed IP address)
7. The DHCP Client ID field should be blank
8. Everything else should be blank

   

9. Save changes and close the window

If you do not see Built-in Ethernet in the show field

1. Select Active Network Ports from the show field
2. Select Built-in Ethernet
3. Click Apply Now
4. If Built-in Ethernet is not in the window, select New
5. A dropdown menu will appear
6. From the drop down list, select Built-in Ethernet
7. Click OK

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