Connectivity Test Failed

Expanding the Test Steps, I found the following error message:
ExRCA is attempting to send the OPTIONS command to the server.
Testing of the OPTIONS command failed. For more information, see Additional Details.
    Additional Details:

A Web Exception occurred because an HTTP 401 – Unauthorized response was received from IIS7

Solution

Mention the , Domain\User Name (or UPN) is ,

username@domainname.com

Eg:

user1@expertise.com