Maximum Request Length Exceeded - Relating to ER2

In the web.config file of ER2, locate the following part:
<httpRuntime..... />
Try replacing it with the following:
<httpRuntime requestValidationMode="2.0" maxRequestLength="20480" />

Change this one

<system.Web> <httpRuntime targetFramework="4.5" /> </system.Web>

Change to this
<system.Web> <httpRuntime requestValidationMode="2.0" maxRequestLength="20480" /> </system.Web>