Information, Technology & Consulting

Reset DNS Servers on Mac


  1. Open Finder then double click Applications in the left menu bar.
  2. Double click System Preferences from within the Applications folder.
  3. Double click Network.
  4. In the left hand navigation column, click the first connection that is marked Connected to select it. All active connections have a green dot next to them.
  5. Click the Advanced button found in the lower right corner.
  6. Click the DNS tab. In the left hand list for DNS servers, select all entries one by one and click the (minus) button to remove it from the list until the list is empty.
  7. Once no manual entries exist on the list, it will show the default DNS servers given to the machine via DHCP.

Repeat steps 5 and 6 for all active connections.

Computer and Device Services
Network Access
Last updated: 
Monday, March 19, 2018

If you have questions or need further information, contact your department's IT support office, or contact the IT Service Desk via email at [email protected], via phone at 603-646-2999 or walk in to see them in Baker/Berry 178J.

Information, Technology & Consulting