Signalr/Hub not loading in IIS 7 but working correctly in Visual Studio

The problem was solved by setting the following flags in the web.config.

<configuration>
    <system.webServer>
        <validation validateIntegratedModeConfiguration="false" />
        <modules runAllManagedModulesForAllRequests="true">
        </modules>
    </system.webServer>
</configuration>

For some reason Nuget did not set these values for Elmah or SignalR

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