Remote name could not be resolved 'westus.api.cognitive.microsoft.com' - Microsoft Azure Bot - QnAMaker

Question

I have a Microsoft Azure Bot running with basic QnA Dialog implementation. When I run the stock code from Azure, with only the QnAKnowledgebaseId and QnASubscriptionKey inserted, it will give me the following error (not anymore - see EDIT ):

Exception: The remote name could not be resolved: ‘westus.api.cognitive.microsoft.com’

In addition to this error, there is another console output in Virtual Studio:

iisexpress.exe Warning: 0 : Service url localhost:59706 is not trusted and JwtToken cannot be sent to it.

This issue is probably related to JwtToken cannot be sent - Microsoft Azure Bot - LUIS

Does anyone have the same issue and knows a solution?

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EDIT

I now used a proxy to connect to the network on my computer. The Expection doesn't appear anymore but now another one appears:

Exception: The remote server returned an error: (404) Not Found.

the Warning though still exists.

Answer 1

I had this problem for ages.

Adding this to the web.config fixed it for me.

  <system.net>
    <defaultProxy enabled="true" useDefaultCredentials="true"></defaultProxy>
  </system.net>