{ApplicationName}/ScriptResource.axd and invalid viewstate
<p>I have an asp.net web form application running in a web farm?</p>

<p>All the machine keys are configured the same in web.config according to MSDN recommendation, still, it periodically throw out "System.Web.HttpException: Invalid viewstate.", and according to the stack.</p>

<p>It's in this line</p>

<p>Request : /{applicationname}/ScriptResource.axd +92</p>

<p>Note:{applicationname} is my application name.</p>
