A request with a user name that is not valid was detected. The user name does not match the user name that created the session; ...

A request with a user name that is not valid was detected. The user name does not match the user name that created the session; this can be an attempt to take control of the session. The request was denied.
  Session ID: %1
  Request user name: %2
  Session user name: %3
 Origin IP address (REMOTE_ADDR): %4
 Origin IP address (HTTP_X_FORWARDED_FOR): %5