问题
Have a service bus queue where we are polling for the messages using the ServiceBus QueueClient/ReceiveMessage.
The service bus version used is 3.1.4 and the connectivity mode is https.
We are getting the following exception in one of the machines:
Microsoft.ServiceBus.Messaging.MessagingCommunicationException: The server rejected the upgrade request. 400 This endpoint is only for web-socket requests ---> System.ServiceModel.CommunicationException: The server rejected the upgrade request. 400 This endpoint is only for web-socket requests ---> System.IO.IOException: The server rejected the upgrade request. 400 This endpoint is only for web-socket requests
Unable to figure out the root cause of this issue as to why we are getting only in one specific machine the MessagingCommunicationException.
来源：https://stackoverflow.com/questions/41672060/service-messagingcommunication-exception-the-end-point-is-only-for-web-socket