Azure Computer Vision REST API for OCR no longer working

Question

Azure Computer Vision REST API for OCR no longer working

Gayan H 10

Hi everyone,

We experienced that performing OCR through Azure Computer Vision API is no longer working as expected and returning 404 'Resource not found' error. It was working just fine two weeks back and suddenly stopped working.

It's the same when you try it out through "Use the REST API" link at https://portal.vision.cognitive.azure.com/demo/extract-text-from-images

Anyone have an idea if there are known issues with this at the moment?

Thanks in advance!

Regards,
Gayan

SriLakshmi C 6,255 Reputation points Microsoft External Staff Moderator

2025-05-16T14:27:49.14+00:00

Hi @Gayan H

Following up to see if the below suggestion was helpful. And, if you have any further query do let us know.

Thank you!
Leo Tran 5 Reputation points

2025-05-19T09:26:43.5233333+00:00

Hi Gayan H,

Thank you for contacting Q&A Forum. I would like to provide my findings and proposed solution:

Since the above mentioned did not resolve the problem. I recommend opening a support ticket for a more in-depth investigation. This will allow our support team to provide you with tailored assistance.

Kindly let me know if this work for you and please let me know if you have any further question. If the provided answer helped resolve your issue, kindly consider marking it as the accepted answer.

Best regards,
Edward Le 0 Reputation points

2025-05-22T04:45:46.8933333+00:00

Hi, @Gayan H

I am following up to see if the above answer was helpful. If this answers your query, do click Accept Answer and Yes

1 answer

Your answer

SriLakshmi C 6,255 Reputation points Microsoft External Staff Moderator

2025-05-16T14:27:49.14+00:00

Hi @Gayan H

Following up to see if the below suggestion was helpful. And, if you have any further query do let us know.

Thank you!
Leo Tran 5 Reputation points

2025-05-19T09:26:43.5233333+00:00

Hi Gayan H,

Thank you for contacting Q&A Forum. I would like to provide my findings and proposed solution:

Since the above mentioned did not resolve the problem. I recommend opening a support ticket for a more in-depth investigation. This will allow our support team to provide you with tailored assistance.

Kindly let me know if this work for you and please let me know if you have any further question. If the provided answer helped resolve your issue, kindly consider marking it as the accepted answer.

Best regards,
Edward Le 0 Reputation points

2025-05-22T04:45:46.8933333+00:00

Hi, @Gayan H

I am following up to see if the above answer was helpful. If this answers your query, do click Accept Answer and Yes

Answer 1

Deepanshu katara 17,255 MVP Moderator

Hello, Welcome to MS Q&A

If you're experiencing a 404 'Resource not found' error with the Azure Computer Vision API, and there are no active outages impacting your subscriptions, it might be worth checking a few other aspects:

Resource Configuration: Ensure that the resource you are trying to access is correctly configured and still exists in your Azure portal. Sometimes resources might be accidentally deleted or moved.

Endpoint and Keys: Verify that you are using the correct endpoint and subscription keys. Any changes in these could lead to a 404 error.

API Version: Check if there have been any updates or changes to the API version you are using. Sometimes, older versions might be deprecated.

Network Issues: Ensure there are no network issues or firewall settings blocking access to the Azure services.

If these checks do not resolve the issue, consider reaching out to Azure support for further assistance.

Pls let me know if further ques

Kindly accept if it helps

Thanks

Deepanshu

Gayan H 10 Reputation points

2025-05-19T03:09:01.8466667+00:00

Hi,

Thanks for the answer. Tried the suggestions but none of them worked. Tried creating a resource on a different region as well but that didn't help too.

The fact that the REST API testing linking through this doesn't work concerns me. https://portal.vision.cognitive.azure.com/demo/extract-text-from-images

I think that implies something wrong with the API itself?

Thanks!
David Lewis 1 Reputation point

2025-05-31T13:20:00.46+00:00

I'm facing the same issue in both Azure Gov and Azure Public for Computer Vision.

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Azure Computer Vision REST API for OCR no longer working

1 answer

Your answer