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WebSocket connection error Windows Server 2012 R2 / IIS 8.5 / .NET 4.5.1 RRS feed

  • Question

  • User-825682493 posted

    I'm running SignalR built against .NET 4.5.1. On Windows Server 2008 R2 it runs without a hitch, but when I set it up on Windows Server 2012 R2 (running IIS 8.5), I get the following error when the webSocket connection is attempted:

    WebSocket connection to 'wss://.../webVision/0.2.0.0/signalr/connect?transport=webSo…NC9BK4aN6cDWcF&connectionData=%5B%7B%22name%22%3A%22basehub%22%7D%5D&tid=7' failed: Error during WebSocket handshake: Unexpected response code: 500

    I have the framework specified in Web.Config:

    	<system.web>
    		<compilation debug="true" targetFramework="4.5.1" />
    		<httpRuntime targetFramework="4.5.1" />

    The posts I can find regarding similar circumstances all reference framework version 4.5.

    Will this just not work with framework version 4.5.1?

    Friday, July 31, 2015 12:09 PM

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