Answer
This problem occurs because the network folder is not a trusted location in the .NET security settings.
To add your folder to the security settings, run the following command from a command prompt.
C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\caspol -q -m -ag LocalIntranet_Zone -url “\*” FullTrust -n IGSS32V8_Report
Remember to replace with the network path you’re using.
Example :
C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\caspol -q -m -ag LocalIntranet_Zone -url “\\10.87.45.32\RMSTemplates\*” FullTrust -n IGSS32V8_Report