<issue_start><issue_comment>Title: Connection failure for speech-text
username_0: 
<issue_comment>username_1: I am having the same issue, I have tried the service with curl and it does work using my subscription key.
<issue_comment>username_2: The error basically says there is no connection to service. It could be that Websocket connection is blocked by some firewalls in the network. Could you please try using different networks.

A side note: we have tested SDK on Windows 10, but not on Windows 7. If possible, please test your app on Windows 10.
<issue_comment>username_3: I am having the same issue. I have tried several samples using my subscription key, and the results are:

- [js sample](https://github.com/Azure-Samples/cognitive-services-speech-sdk/tree/master/samples/js/browser) OK
- [cpp console](https://github.com/Azure-Samples/cognitive-services-speech-sdk/tree/master/samples/cpp/windows/console) Failed
- [dotnet console](https://github.com/Azure-Samples/cognitive-services-speech-sdk/tree/master/samples/csharp/dotnet-windows/console) Failed
- [dotnet wpf](https://github.com/Azure-Samples/cognitive-services-speech-sdk/tree/master/samples/csharp/dotnet-windows/speechtotext-wpf) Failed

BTW, I'm using v1.0.0 SDK on Win7.
<issue_comment>username_4: As Zhou said above. Win7 is not tested or supported

thx
Wolfgang
<issue_comment>username_5: Juste use "canadacentral" as region instead of "canadacentral.cris.ai" as they mention in the code. That solved my proem