Seems your issue is related with TN global issue which occured in last November affecting all customers. WM posted fixes for different IS versions.you can download it from http://www.webmethods.com/tnresolution .
Please make sure that these fixes if already installed on your WM environment.
Thank you RMG and Reddy .Can you please explain in detail how to fix this problem.can you please give me links to the articles regarding this issue.Thanks in advance
Those fixes zip files will have the release notes about how to install procedure,it is straight forwared.If you dont have enough privileges on your servers make your admins involve.
saritha,
i think ur working in WM 6.1 and u have to add jar files i mean to say fixes these fixes u will find in avantages.webmethods , ok try with these u will find solution