Azure OpenAI error

Question

Azure OpenAI error

Bikeh 0

I'm unable to use Azure openAI models, I get the error whenever I try, need help asap

2026-03-25 21:54:18,572 - httpx - INFO - HTTP Request: POST "HTTP/1.1 200 OK"

21:54:18 | ERROR | ❌ Streaming error: Forbidden, falling back to standard invocation

2026-03-25 21:54:18,768 - AnalyzerAgent - ERROR - ❌ Streaming error: Forbidden, falling back to standard invocation

2026-03-25 21:54:19,678 - httpx - INFO - HTTP Request: POST "HTTP/1.1 403 Forbidden"

21:54:19 | ERROR | ❌ Error in manual tool calling loop: Error code: 403 - {'error': {'message': 'Forbidden', 'type': 'forbidden', 'param': None, 'code': 'forbidden'}}

SRILAKSHMI C 16,965 Reputation points Microsoft External Staff Moderator

2026-03-27T10:02:50.7233333+00:00

Hi Bikeh,

Did you get any chance to review the above response. Do let me know if you have any further queries.

Thank you!
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This comment has been deleted due to a violation of our Code of Conduct. The comment was manually reported or identified through automated detection before action was taken. Please refer to our Code of Conduct for more information.
Manas Mohanty 16,190 Reputation points Microsoft External Staff Moderator

2026-04-06T03:20:02.3233333+00:00

Hi Bikeh

I have share support ticket link for support ticket generation in private message.

Could you help with details to connect for quick call to troubleshoot the issue.

Thank you

2 answers

Your answer

SRILAKSHMI C 16,965 Reputation points Microsoft External Staff Moderator

2026-03-27T10:02:50.7233333+00:00

Hi Bikeh,

Did you get any chance to review the above response. Do let me know if you have any further queries.

Thank you!
Deleted

This comment has been deleted due to a violation of our Code of Conduct. The comment was manually reported or identified through automated detection before action was taken. Please refer to our Code of Conduct for more information.
Manas Mohanty 16,190 Reputation points Microsoft External Staff Moderator

2026-04-06T03:20:02.3233333+00:00

Hi Bikeh

I have share support ticket link for support ticket generation in private message.

Could you help with details to connect for quick call to troubleshoot the issue.

Thank you

Answer 1

Hi **Bikeh,**To re-emphasize the issue on 403 errors (Authentication issue)

A 403 Forbidden in this case is almost always due to one of these:

API key ↔ endpoint mismatch
Wrong deployment name
Missing IAM role
Model not deployed / not allowed
Network restrictions
Subscription not approved

Please let us know below details if the issue persists after applying "Cognitive Service OpenAI contributor" to user on OpenAI IAM and verifying Endpoint URL/key mismatch.

Is it virtual network protected
Model name and version used.
Is Microsoft.CognitiveServices provider registered on Subscription/providers
Does the issue still persists at your side.

I have also tried to reach you via private message to investigate via Support ticket.

Thank you.

Answer 2

Yutaka_K_JP 1,655

I think the 403 just means the model isn’t enabled for your sub in that region… maybe check Model deployments / Quotas once, that’s where it usually breaks.

SRILAKSHMI C 16,965 Reputation points Microsoft External Staff Moderator

2026-03-26T05:36:52.0266667+00:00
Hello Bikeh,

Welcome to Microsoft Q&A and Thanks for reaching out,

The 403 Forbidden is the key signal here. This means your request is reaching Azure OpenAI Service, but the service is rejecting it due to authentication, permissions, or configuration issues (not a code/SDK problem).

Also, from your logs Streaming error: Forbidden, falling back… followed by another 403

This confirms it’s not a streaming issue it’s a core access/config issue.

Steps to resolve

Verify authentication.

Ensure your endpoint URL is correct:

https://<your-resource-name>.openai.azure.com/

Make sure the API key matches the same resource

Confirm your client (Python/JS/HTTPX) is actually sending:

api-key header OR

correct Entra ID token

Endpoint and key mismatch are common cause of 403

Check deployment name

Azure uses deployment names, not raw model names.

Go to Azure Portal → OpenAI → Deployments

Verify exact name (case-sensitive)

Confirm you have access (RBAC / IAM)

Go to Azure Portal → OpenAI resource → Access control (IAM)

Ensure your user/service principal has:

Cognitive Services OpenAI Contributor

or Contributor / Owner

Check if model is deployed & allowed

Make sure the model is actually deployed in your resource

Some subscriptions/regions don’t have access to all models

Review networking restrictions

If your resource has Firewall rules, Private endpoint, Selected networks only

Then your request may be blocked.

Check Networking → Public access enabled?

Your IP/VNet is allowed?

Confirm subscription access

If this is a new setup Azure OpenAI access must be approved first

If not approved, then all calls return 403

Check service health

Look at Azure Service Health / Resource Health

Ensure no outage in your region

Try a simple non-streaming call:

from openai import AzureOpenAI client = AzureOpenAI( api_key="YOUR_KEY", azure_endpoint="YOUR_ENDPOINT", api_version="2024-02-15-preview" ) response = client.chat.completions.create( model="YOUR_DEPLOYMENT_NAME", messages=[{"role": "user", "content": "Hello"}] ) print(response)

A 403 Forbidden in this case is almost always due to one of these:

API key ↔ endpoint mismatch

Wrong deployment name

Missing IAM role

Model not deployed / not allowed

Network restrictions

Subscription not approved

Please refer this

Azure Portal service health: https://learn.microsoft.com/azure/service-health/overview

Error handling & 403 code details (Python/JS/.NET): – Python: https://learn.microsoft.com/azure/foundry/openai/supported-languages?wt.mc_id=knowledgesearch_inproduct_azure-cxp-community-insider#error-handling

I Hope this helps. Do let me know if you have any further queries.

Thank you!

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Azure OpenAI error

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