Security Link error message "Failed to Start a Link Session"

Error message may also be displayed as "Authorization Denied - Failed to Start a Link Session" 

NOTE: 

• No Reference Code displayed
• No Error Number displayed

This indicates your diagnostic tool is not communicating and/or receiving a response from your Profile Manager account, in order to unlock the session.  No error received was received from Profile Manger or Autoauth

Things to check:

1. Ensure you have a strong Wi-Fi connection on your diagnostic tool.
2. Try using a difference known good network.
3. Ensure you have the current diagnostic software installed and your account status is "Active"