CMS Connection Error in Information Steward

”Connection to the CMS SERVERNAME: PORTNUMBER can not be restored. The session was logged off or has expired. (FWM01002).”

Some times i am facing this error when I login to the Information Steward.

I have searched in many forums regarding this. The solutions given are related to some other environment like XCELSIUS,INFOVIEW ETC… I am not able to find any specific solution for Information Steward Envinronment.

Kindly help me in resolving this error, if anybody has already encountered this error.