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SignalR transport protocol negotiate failure RRS feed

  • Question

  • User1135166864 posted

    Hey everyone, I have a problem when I connect the signalr server. 

    strangely the problem occasionally occurs. most of the time, it works well.

    Error: No transport could be initialized successfully. Try specifying a different transport or none at all for auto initialization.

    the all information listed below

    [12:50:03 GMT+0800 (China Standard Time)] SignalR: Client subscribed to hub 'checkin'.
    [12:50:03 GMT+0800 (China Standard Time)] SignalR: Negotiating with '/signalr/negotiate?clientProtocol=1.5&connectionData=%5B%7B%22name%22%3A%22checkin%22%7D%5D'.
    [12:50:03 GMT+0800 (China Standard Time)] SignalR: webSockets transport starting.
    [12:50:03 GMT+0800 (China Standard Time)] SignalR: Connecting to websocket endpoint 'wss://f1data.qa.fellowshipone.com/signalr/connect?transport=webSockets&clie…C0X8YJOxiYl3ja&connectionData=%5B%7B%22name%22%3A%22checkin%22%7D%5D&tid=7'.
    [12:50:06 GMT+0800 (China Standard Time)] SignalR: Websocket opened.
    [12:50:08 GMT+0800 (China Standard Time)] SignalR: webSockets transport timed out when trying to connect.
    [12:50:08 GMT+0800 (China Standard Time)] SignalR: Closing the Websocket.
    [12:50:08 GMT+0800 (China Standard Time)] SignalR: webSockets transport failed to connect. Attempting to fall back.
    [12:50:08 GMT+0800 (China Standard Time)] SignalR: serverSentEvents transport starting.
    [12:50:08 GMT+0800 (China Standard Time)] SignalR: Attempting to connect to SSE endpoint 'https://f1data.qa.fellowshipone.com/signalr/connect?transport=serverSentEve…C0X8YJOxiYl3ja&connectionData=%5B%7B%22name%22%3A%22checkin%22%7D%5D&tid=5'.
    [12:50:09 GMT+0800 (China Standard Time)] SignalR: EventSource connected.
    [12:50:13 GMT+0800 (China Standard Time)] SignalR: serverSentEvents transport timed out when trying to connect.
    [12:50:13 GMT+0800 (China Standard Time)] SignalR: EventSource calling close().
    [12:50:13 GMT+0800 (China Standard Time)] SignalR: serverSentEvents transport failed to connect. Attempting to fall back.
    [12:50:13 GMT+0800 (China Standard Time)] SignalR: foreverFrame transport starting.
    [12:50:13 GMT+0800 (China Standard Time)] SignalR: Forever Frame is not supported by SignalR on browsers with SSE support.
    [12:50:13 GMT+0800 (China Standard Time)] SignalR: foreverFrame transport failed to connect. Attempting to fall back.
    [12:50:13 GMT+0800 (China Standard Time)] SignalR: longPolling transport starting.
    [12:50:13 GMT+0800 (China Standard Time)] SignalR: Opening long polling request to 'https://f1data.qa.fellowshipone.com/signalr/connect?transport=longPolling&c…9994AzC0X8YJOxiYl3ja&connectionData=%5B%7B%22name%22%3A%22checkin%22%7D%5D'.
    [12:50:18 GMT+0800 (China Standard Time)] SignalR: longPolling transport timed out when trying to connect.
    [12:50:18 GMT+0800 (China Standard Time)] SignalR: Aborted xhr request.
    [12:50:18 GMT+0800 (China Standard Time)] SignalR: longPolling transport failed to connect. Attempting to fall back.
    [12:50:18 GMT+0800 (China Standard Time)] SignalR: Fallback transports exhausted.
    SignalR Connecting: Error: No transport could be initialized successfully. Try specifying a different transport or none at all for auto initialization.
    [12:50:18 GMT+0800 (China Standard Time)] SignalR: Stopping connection.
    [12:50:18 GMT+0800 (China Standard Time)] SignalR: Fired ajax abort async = true.

     

    Tuesday, September 1, 2015 12:59 AM

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