Hi Mariana Logvinenko,
Greetings & Welcome to Microsoft Q&A forum! Thanks for posting your query!
It seems like there are two main issues in Speech Studio
Error 1006: Unable to contact server
This usually happens if the endpoint is incorrect.
Ensure you’re using the correct region-specific endpoint, e.g., {region}.tts.speech.microsoft.com (replace {region} with your Azure region, like westus or northeurope).
Error 403: Virtual Network is configured
This occurs because your Speech service is secured by a Virtual Network (VNet).
Verify that your Firewall IP ranges are correct and match your VNet settings.
Check that the Speech service has a private endpoint properly configured and that DNS settings resolve the endpoint to your VNet.
If you want Speech Studio to access the service, temporarily enable the public endpoint in the Networking settings.
Here are a few steps you can take to troubleshoot and resolve these issues:
Verify Endpoint Configuration: Double-check that you are using the correct endpoint for your region.
Update Subscription Key: Sometimes, generating a new subscription key and updating it in your configuration can resolve connectivity issues.
Check Firewall Settings: Ensure that the IP addresses added to the Firewall IP ranges are correct and that there are no typos or missing entries.
Review Virtual Network Configuration: Confirm that your Virtual Network settings are correctly configured to allow traffic from the necessary IP ranges.
If these steps do not resolve the issue, please raise a support request through the Azure portal Microsoft Support.
Hope this helps. Do let us know if you have any further queries.
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