Rest service returns 403 error, if user logined in drupal

Obtaining logined user information logined I logined to the site using Facebook Connect and updated my profile details But the site is not showing up my name in the members list logined Logined Prypiac Zytkavičy Babrejsk Hlusk Kalinkavičy Mary Loey Map of Belarus showing the border between East and West Belarus This book concerns the Jews

logined Dear Friends, I am using VS2008,,c# web application When users are logined simultaneously, the session values are changing among users