The underlying connection was closed: An unexpected error occurred on a send in SOAP webservice

I have a reference to a webservice which uses SOAP to process the searches and starting today morning i am receiving the following error:

The underlying connection was closed: An unexpected error occurred on a send.

This will not happen for few requests if the application is restarted and will start receiving these errors after a some time say like 5 minutes and if we restart as said the services are re-processed without any issues.

I have read: http://ift.tt/1cw7Tbs

but those methods will not work for my case. Anyone else have faced similar problem???