When attempting to upload a large (45MB) file to a SharePoint 2010 library, you may receive the following error:
"10702 An error occurred in the [SP Service Instance Name] Service Instance. There was an exception running the extensions specified in the config file. ---> Maximum request length exceeded."
Before You Begin
This error can be resolved by modifying the web.config file in the SharePoint server.
The following steps can be performed to resolve the issue:
1. Navigate to [ProgramFiles]\Common Files\Microsoft Shared\Web Server Extensions\15\ISAPI on the SharePoint server
2. Make a backup copy of the web.config
3. Add the following section in the web.config:
<httpRuntime maxRequestLength=”2097151″ executionTimeout=”240″ />