IDoc to AS2 scenario connection issue

Hi Experts,

IDoc to AS2 scenario.

i am geeting below connection  error  while sending data from PI to Third Party Partner.Please help me on this issue i will appriciate you .

MP: exception caught with cause javax.resource.ResourceException: Fatal exception: javax.resource.ResourceException: SEEBURGER AS2: java.net.SocketException: Connection reset # , SEEBURGER AS2: java.net.SocketException: Connection reset #

Thanks,

Aadi