If your attempting to upload files within either InstantForum.NET or InstantKB.NET and the upload times out or you receive a 404 page half way through the upload please add the following tags to your InstantForum.NET or InstantKB.NET web.config files….
With both InstantForum.NET and InstantKB.NET you'll need to modify the existing <httpRuntime/> element within the web.config as shown below…
<httpRuntime executionTimeout="6600" maxRequestLength="1536000"/>
For IIS7 you'll need to add the entire <security/> element below to your <System.WebServer/> element…
If you still experience problems uploading large files please also modify the connection timeout property within IIS as shown below…
We hope this helps. If we can assist as always please don't hesitate to open a support ticket or contact us.