Out of Office Error: “Sorry! We’re having trouble processing your request right now. Please try again in a few minutes.”

Problem:

You open up OWA and you try setting up your Out of Office response but you get the following error:

“Sorry!  We’re having trouble processing your request right now.  Please try again in a few minutes.”

 Solution:

ECP is not allowing Anonymous authentication.

  • On the server, open up IIS
  • Drill down until you can see ECP (Sites > Default Web Site > ECP)
  • In the middle of the screen, look for Authentication
  • Enable Anonymous Authentication
  • Test