Was Frontdoor having issue on Feb. 23rd, 2026 around 1:30pm PST?

Question

Was Frontdoor having issue on Feb. 23rd, 2026 around 1:30pm PST?

Hiroshi Tashiro 65 Microsoft Employee

Below are Frontdoor's 5xx percentage around 1:30pm PST on Feb. 23rd, 2026 and all of them started having 5xx errors:

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I checked AzureDiagnositcs in the all above Frontdoors, but I do not see any logs:

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I checked availabilityResults in Application Insights around the same time, but I only see two failed records from '504 - Gateway timeout'.

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Can you give me insights?.

Venkatesan S 5,710 Reputation points Microsoft External Staff Moderator

2026-03-05T23:44:10.3933333+00:00

Hi Hiroshi Tashiro,

Thank you for contacting us about the Front door having issue. We have begun looking into it and will share our suggestions with you as soon as possible. If you have any additional details or concerns in the meantime, please let us know. We appreciate your patience while we work on this.
Ravi Varma Mudduluru 8,970 Reputation points Microsoft External Staff Moderator

2026-03-06T01:19:11.4666667+00:00

Hello @ Hiroshi Tashiro,

Thank you for reaching Microsoft Q&A.

I checked the backend and found no outages during the time you mentioned. Here is the document explaining the reasons for 504 errors.

Reference Document:

Troubleshoot Azure Front Door common issues (503/504 timeouts) -- Troubleshoot common issues - Azure Front Door | Microsoft Learn

Kindly let us know if the above helps or you need further assistance on this issue.

Please "upvote" if the information helped you. This will help us and others in the community as well.
Hiroshi Tashiro 65 Reputation points Microsoft Employee

2026-03-06T07:53:08.06+00:00

Thank you for your reply. I check the 'Origin response timeout' and it is 30 sec in my Front Door.

Now, I checked the Origin latency around the same time in my Front Doors below:

The longest latency was around 1.80 sec. Therefore, it's a lot shorter than timeout of 30 seconds.
Hiroshi Tashiro 65 Reputation points Microsoft Employee

2026-03-11T20:38:50.9666667+00:00

Thank you for your response. I will check our backend service logs.
Ganesh Patapati 11,370 Reputation points Microsoft External Staff Moderator

2026-03-11T20:59:37+00:00

Hello Hiroshi Tashiro

Thanks for the reply!

Should there be any follow-up questions or concerns, please let us know and we shall try to address them.

If these answer your question, click "Upvote" which may be beneficial to other community members reading this thread.

1 answer

Your answer

Venkatesan S 5,710 Reputation points Microsoft External Staff Moderator

2026-03-05T23:44:10.3933333+00:00

Hi Hiroshi Tashiro,

Thank you for contacting us about the Front door having issue. We have begun looking into it and will share our suggestions with you as soon as possible. If you have any additional details or concerns in the meantime, please let us know. We appreciate your patience while we work on this.
Ravi Varma Mudduluru 8,970 Reputation points Microsoft External Staff Moderator

2026-03-06T01:19:11.4666667+00:00

Hello @ Hiroshi Tashiro,

Thank you for reaching Microsoft Q&A.

I checked the backend and found no outages during the time you mentioned. Here is the document explaining the reasons for 504 errors.

Reference Document:

Troubleshoot Azure Front Door common issues (503/504 timeouts) -- Troubleshoot common issues - Azure Front Door | Microsoft Learn

Kindly let us know if the above helps or you need further assistance on this issue.

Please "upvote" if the information helped you. This will help us and others in the community as well.
Hiroshi Tashiro 65 Reputation points Microsoft Employee

2026-03-06T07:53:08.06+00:00

Thank you for your reply. I check the 'Origin response timeout' and it is 30 sec in my Front Door.

Now, I checked the Origin latency around the same time in my Front Doors below:

The longest latency was around 1.80 sec. Therefore, it's a lot shorter than timeout of 30 seconds.
Hiroshi Tashiro 65 Reputation points Microsoft Employee

2026-03-11T20:38:50.9666667+00:00

Thank you for your response. I will check our backend service logs.
Ganesh Patapati 11,370 Reputation points Microsoft External Staff Moderator

2026-03-11T20:59:37+00:00

Hello Hiroshi Tashiro

Thanks for the reply!

Should there be any follow-up questions or concerns, please let us know and we shall try to address them.

If these answer your question, click "Upvote" which may be beneficial to other community members reading this thread.

Answer 1

Hello Hiroshi Tashiro

I checked the backend and found no outages during the time you mentioned.

Additionally:

Azure Status History for February 2026 shows no Front Door PIR on Feb 23.

If multiple Front Door profiles point to:

The same App Service
The same AKS / VM backend
The same on‑prem / ExpressRoute / Firewall path

Then a backend slowdown or transient dependency issue will surface as simultaneous 5xx across all Front Doors, even though Front Door itself is healthy.

Microsoft Docs: 503 or 504 response from Azure Front Door after a few seconds

NOTE: Microsoft confirmed there was no Azure Front Door outage on Feb 23, 2026 around 1:30 PM PST. The 5xx errors were most likely caused by backend origin timeouts or a shared downstream dependency, not the Front Door service itself.

Can you please update us if the action plan provided was helpful?

Should there be any follow-up questions or concerns, please let us know and we shall try to address them.

If these answer your question, click "Upvote" which may be beneficial to other community members reading this thread.

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Was Frontdoor having issue on Feb. 23rd, 2026 around 1:30pm PST?

1 answer

Your answer