Connection failed (no connection to the remote host)

@romungi-MSFT

I encountered the same issue, where I was able to successfully connect and return audio when using the SDK Text-to-Speech service, but when I tried Speech-to-Text, I got the following connection error:

CANCELED: Reason=0 
CANCELED: ErrorCode=4 
CANCELED: ErrorDetails=Unable to contact server. StatusCode: 1006, undefined Reason: connect ETIMEDOUT 20.195.72.247:443 
CANCELED: Did you set the speech resource key and region values? 

I'm certain that the resource key and region values are set correctly, and the network connection should be fine, as the Text-to-Speech service is working normally. The related code is as follows:

let speechConfig = sdk.SpeechConfig.fromSubscription(process.env.SPEECH_KEY, process.env.SPEECH_REGION);
let audioConfig = sdk.AudioConfig.fromWavFileInput(buffer2)
speechConfig.speechRecognitionLanguage = "en-US";
let speechRecognizer = new sdk.SpeechRecognizer(speechConfig, audioConfig);
let text = '';

speechRecognizer.recognizing = (s, e) => {
  console.log(`RECOGNIZING: Text=${e.result.text}`);
};

speechRecognizer.recognized = (s, e) => {
  if (e.result.reason == sdk.ResultReason.RecognizedSpeech) {
    console.log(`RECOGNIZED: Text=${e.result.text}`);
    text = text + e.result.text
  } else if (e.result.reason == sdk.ResultReason.NoMatch) {
    console.log("NOMATCH: Speech could not be recognized.");
  }
};

speechRecognizer.canceled = (s, e) => {
  console.log(`CANCELED: Reason=${e.reason}`);

  if (e.reason == sdk.CancellationReason.Error) {
    console.log(`"CANCELED: ErrorCode=${e.errorCode}`);
    console.log(`"CANCELED: ErrorDetails=${e.errorDetails}`);
    console.log("CANCELED: Did you set the speech resource key and region values?");
  }

  speechRecognizer.stopContinuousRecognitionAsync();
};

speechRecognizer.sessionStopped = (s, e) => {
  console.log("\n    Session stopped event.");
  speechRecognizer.stopContinuousRecognitionAsync();
};

speechRecognizer.startContinuousRecognitionAsync();

I encountered the same situation as the friend above. There was no problem with text to speech synthesis, but speech recognition failed. The problem was discovered on April 7th, and the operation was still normal on April 6th

@romungi-MSFT

@peisk I believe you have already added the SDK logs on the GH issue and as per the SDK team there could be an issue where the connection is reset by a remote intermediate server. I also believe this is also happening with resources from different regions in your case.

I think this might need more investigation with networking team to understand the source of this reset. This is usually done through a support case where a dedicated engineer is assigned to help debug the issue. Is it possible to raise a support case through your subscription from Azure portal?