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

Error:
aras innovator The underlying connection was closed: An unexpected error occurred on a send

<faultcode>999</faultcode>

Solution:
Case 1:
Comment below line.
//if(System.Diagnostics.Debugger.Launch()) System.Diagnostics.Debugger.Break();  //enable/disable the debugger as required

Since you have added debugger, IIS is not responding. So stop debugger.

Case 2: Your AML is takeing more time to execute, IIS is not responding.
So increase IIS Connection Time-out
Open IIS
Expand Sites
Default Web Site-->Right click "Manage website"-->"Advanced Settings"-->Limits-->
Connection Time-out(seconds)
Change to 600 or 1200

Ideally 3 places you will see time out error in Aras

11.Client timeout – If you have developed any application using C#, then you have to increase the timeout value.

     Innovator innovator

     HttpServerConnection connection = IomFactory.CreateHttpServerConnection(“...”, “…”, “…”, “…”);

            connection.Timeout = 10000000;

            ServicePointManager.MaxServicePointIdleTime = 10000000;

            ServicePointManager.MaxServicePoints = 4;

            Item loginOItem = connection.Login();

22. IIS timeout -If you are using any AML code, then you may get timeout error, for that increasing website from 120 to 1800

·         Open IIS

·         Expand Sites

·         Default Web Site-->Right click "Manage website"-->"Advanced Settings"-->Limits-->

·         Connection Time-out(seconds)

·         Change to 600 or 1200

33.SQL timeout - If you are using any AML code or SQL, then you may get timeout error , for that increasing from 600 to 3000

·         Login to SQL server management studio

·         Connect to sql server

·         Right click on sql serveràPropertiesàConnections

·         Remote query timeout give 600 or 1200

Note: It's always recommended to set back IIS and SQL timeout values as is, after completion of your task