https://community.developer.cybersource.com/t5/Integration-and-Testing/Error-underlying-connection-was-closed/m-p/55674#M30519 <P>Hello&nbsp;<a href="https://community.developer.cybersource.com/t5/user/viewprofilepage/user-id/20556">@bharat2010</a></P> <P>&nbsp;</P> <P>Please see&nbsp;<A href="https://community.developer.authorize.net/t5/Integration-and-Testing/Windows-Server-2003-End-of-Life/m-p/51293/highlight/true#M26668" target="_blank">https://community.developer.authorize.net/t5/Integration-and-Testing/Windows-Server-2003-End-of-Life/m-p/51293/highlight/true#M26668</A></P> <P>&nbsp;</P> <P>Richard</P> Wed, 07 Sep 2016 13:32:17 GMT RichardH 2016-09-07T13:32:17Z https://community.developer.cybersource.com/t5/Integration-and-Testing/Error-underlying-connection-was-closed/m-p/55672#M30517 <P>We are using Windows 2003 for AIM integration and get the following error while calling <A href="https://test.authorize.net/gateway/transact.dll" target="_blank">https://test.authorize.net/gateway/transact.dll</A><BR /><BR />The underlying connection was closed: An unexpected error occurred on a send.<BR /><BR />When we are running the code in production, it seems to be running fine,<BR /><A href="https://secure.authorize.net/gateway/transact.dll" target="_blank">https://secure.authorize.net/gateway/transact.dll</A><BR /><BR />In IE the TEST website transact.dll is not working, but we are able to access the production transact.dll<BR />Is this related to any certificate error ?</P> Wed, 07 Sep 2016 11:08:02 GMT https://community.developer.cybersource.com/t5/Integration-and-Testing/Error-underlying-connection-was-closed/m-p/55672#M30517 bharat2010 2016-09-07T11:08:02Z https://community.developer.cybersource.com/t5/Integration-and-Testing/Error-underlying-connection-was-closed/m-p/55674#M30519 <P>Hello&nbsp;<a href="https://community.developer.cybersource.com/t5/user/viewprofilepage/user-id/20556">@bharat2010</a></P> <P>&nbsp;</P> <P>Please see&nbsp;<A href="https://community.developer.authorize.net/t5/Integration-and-Testing/Windows-Server-2003-End-of-Life/m-p/51293/highlight/true#M26668" target="_blank">https://community.developer.authorize.net/t5/Integration-and-Testing/Windows-Server-2003-End-of-Life/m-p/51293/highlight/true#M26668</A></P> <P>&nbsp;</P> <P>Richard</P> Wed, 07 Sep 2016 13:32:17 GMT https://community.developer.cybersource.com/t5/Integration-and-Testing/Error-underlying-connection-was-closed/m-p/55674#M30519 RichardH 2016-09-07T13:32:17Z