Websocket SignalR does not start -

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i deployed mvc web app windows server 2012. has windows 8 , iis v8 installed. application uses signalr, , use websockets, gives errors.

in every browser (chrome ff, ie) error same:

"networkerror: 500 internal server error - https://domain.com/signalr/connect?transport=websockets&connectiontoken=wiir333%2bkbku0ex2spzle9w9x6eam5lbssbjxbqcvl0qpjaigthkn1xiiqhygi3o4ddliv7whtahvb8ll5kfwjnrzazadycapwj5awm6d1czzxh89k%2bouhzibh7dct9i&connectiondata=%5b%7b%22name%22%3a%22charthub%22%7d%5d&tid=8"

the detailed error message be:

exception information:      exception type: invalidoperationexception      exception message: not valid web socket request.    @ microsoft.aspnet.signalr.transports.websockettransport.acceptwebsocketrequest(func`2 callback)    @ microsoft.aspnet.signalr.persistentconnection.processrequest(hostcontext context)    @ microsoft.aspnet.signalr.hubs.hubdispatcher.processrequest(hostcontext context)    @ microsoft.aspnet.signalr.persistentconnection.processrequest(idictionary`2 environment)    @ microsoft.owin.mapping.mapmiddleware.<invoke>d__0.movenext() --- end of stack trace previous location exception thrown ---    @ system.runtime.exceptionservices.exceptiondispatchinfo.throw()    @ microsoft.owin.host.systemweb.integratedpipeline.integratedpipelinecontext.endfinalwork(iasyncresult ar)    @ system.web.httpapplication.asynceventexecutionstep.system.web.httpapplication.iexecutionstep.execute()    @ system.web.httpapplication.executestep(iexecutionstep step, boolean& completedsynchronously)

i asked in signalr jabbr chat error , told me blocking connections. checked, , both tcp port 80 , port 443 listening.

the iis trust level full (internal) , we're not using loadbalancing. websockets protocol installed.

what wrong?


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