An error (The request was aborted: The request was canceled.) occurred while transmitting data over the HTTP channel.

I got this error when transmitting large file (byte array) to WCF service.

I double checked my web.config,

Code Snippet

85. <bindings>
86.       <basicHttpBinding>
87.         <binding
88.           name="BasicWithMtom"
89.           maxReceivedMessageSize="2621440"
90.           messageEncoding="Mtom">
91.           <readerQuotas maxArrayLength="2621440"/>
92.         </binding>
93.       </basicHttpBinding>
94.     </bindings>

but sizing was good enough.

The problem is, that the WCF service is hosted on IIS and  you need to configure quotas on two separated places!!

Add this:

Code Snippet

82. <system.webServer>
83.   <httpRuntime maxRequestLength="2621440" />
84. </system.webServer>

Everything is working now..

Have a nice day!