Issue:

• You have changed your SU NetID password
• When you try to print to the printers, the job doesn't print and you receive a message On Hold (Authentication Required).

Fix

1. Open you Mac's Keychain Access application. There are two ways to do this
   1. Go to your Launchpad, open the Other folder, then click on the Keychain Access icon.
   2. Click on the magnifying glass icon at the top right corner of your screen,
      In the Spotlight Search window, type Keychain
      Click on the icon for Keychain Access in the results window
      
      

1. 
   
   
   
   
2. If you are NOT PROMPTED to enter your credentials, and when you try to print, your print job pauses with the message On Hold (Authentication Required),  then open your Mac Keychain, search for "law" and find an entry for the printers. If you find one, then delete it from the Keychain, 
   
   
3. Go back to your print job and either click Resume or double click the paused print job and enter your username and password.as shown above.