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Azure speech service error: AuthenticationFailure / WebSocket upgrade failed: Authentication error (401)
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(25.6, 33%, 12%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EBH%3C/text%3E%3C/svg%3E)
Bruce Haley
120
Reputation points
Today, my Azure bot using Azure Speech Service started failing with: "AuthenticationFailure / WebSocket upgrade failed: Authentication error (401). Please check subscription information and region name."
This has worked this whole year, and as recently as noon today. I first noticed the problem this evening around 9 PM.
Testing in Windows Voice Assistant Client v1.23.0, I get the same error: Error (AuthenticationFailure) : WebSocket upgrade failed: Authentication error (401).
Running "Test in Web Chat" in the Azure portal, it works without error.
Why am I getting this AuthenticationFailure all of a sudden? My subscriptions are paid up. I see no errors anywhere else.
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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(281.6, 88%, 37%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ESA%3C/text%3E%3C/svg%3E)
Saideep Anchuri 9,530 Reputation points Moderator2024-09-13T10:27:05.3933333+00:00 This thread is a duplicate of https://learn.microsoft.com/en-us/answers/questions/2069041/azure-speech-service-error-authenticationfailure-w
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