1,345 questions with Azure Application Gateway tags

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2 answers One of the answers was accepted by the question author.

Application Gateway RFC9112 implementation, reject multi host header requests

Hi, We have received the following notification from Azure: PQHV-ZK0 TYPE: ActionRequired STATUS: COMMUNICATION: You’re receiving this notice because you use Azure Application Gateway. Azure Application Gateway will enforce compliance with the RFC…

Azure Application Gateway
Azure Application Gateway

An Azure service that provides a platform-managed, scalable, and highly available application delivery controller as a service.

1,345 questions
asked 2026-03-27T05:38:17.0466667+00:00
Luis Manteiga Fustes 20 Reputation points
accepted 2026-04-01T08:30:02.35+00:00
Luis Manteiga Fustes 20 Reputation points
2 answers

Application Gateway for Containers internal load balancer support

Hello, We are currently evaluating the use of Application Gateway for Containers within our AKS environment. Based on our current understanding, the service appears to support only external load balancing scenarios at this time. We would like to confirm…

Azure Application Gateway
Azure Application Gateway

An Azure service that provides a platform-managed, scalable, and highly available application delivery controller as a service.

1,345 questions
asked 2026-03-31T13:32:00.1766667+00:00
HASAN HUSEYIN AKKOCA 0 Reputation points
commented 2026-03-31T15:35:30.28+00:00
HASAN HUSEYIN AKKOCA 0 Reputation points
2 answers One of the answers was accepted by the question author.

Azure 502 Bad Gateway Issue

I use an application gateway with WAF setup to run our web application deployed in a single Azure VM. When I access the application through App GW from the browser, I sometimes get a 502 Bad Gateway error. The App GW health probe responds with,…

Azure Application Gateway
Azure Application Gateway

An Azure service that provides a platform-managed, scalable, and highly available application delivery controller as a service.

1,345 questions
asked 2025-01-15T15:23:59.74+00:00
Mohammed Shafi 65 Reputation points
answered 2026-03-31T13:03:07.4933333+00:00
othmar kollitsch 20 Reputation points
1 answer One of the answers was accepted by the question author.

Issue with SSL Profiles in AZUre

Hi I have added a ssl profile in Azure Portal and then choose the "verifyClientAuthMode: 'Passthrough'" But when i look into the arm template its not set at all. Is this a bug or am i doing something wrong? Sincerely Matthias

Azure Application Gateway
Azure Application Gateway

An Azure service that provides a platform-managed, scalable, and highly available application delivery controller as a service.

1,345 questions
asked 2026-03-30T07:48:11.6866667+00:00
Matthias Holmberg 20 Reputation points
accepted 2026-03-31T09:27:30.9233333+00:00
Matthias Holmberg 20 Reputation points
2 answers

My application gateway is not exposing the service endpoints hosted on my private AKS cluster

Perhaps I am missing something in the listener and backend configuration, but not sure. I am not able to configure the endpoints, and the backend always results into 502 error.

Azure Application Gateway
Azure Application Gateway

An Azure service that provides a platform-managed, scalable, and highly available application delivery controller as a service.

1,345 questions
asked 2026-03-17T09:35:51.6633333+00:00
cargobuddy 20 Reputation points
commented 2026-03-30T14:55:03.72+00:00
Sina Salam 28,281 Reputation points Volunteer Moderator
3 answers

ApplicationGateway mTLS passthrough blocks any subsequent updates

We have an ApplicationGateway deployed with "Passthrough" mode as described here: https://learn.microsoft.com/en-us/azure/application-gateway/mutual-authentication-arm-template Its working exactly as we expect it: The client certificate is…

Azure Application Gateway
Azure Application Gateway

An Azure service that provides a platform-managed, scalable, and highly available application delivery controller as a service.

1,345 questions
asked 2026-03-19T12:28:16.9233333+00:00
Marcel Zeller 0 Reputation points
answered 2026-03-28T17:01:13.6333333+00:00
Praveen Bandaru 11,230 Reputation points Microsoft External Staff Moderator
1 answer

Application Gateway returns 502 for App Service backend by FQDN

Problem Azure Application Gateway returns 502 Bad Gateway for a custom domain routed to an Azure Web App (App Service). The Web App is reachable directly, but Application Gateway backend health for the App Service endpoint remains in error state when the…

Azure Application Gateway
Azure Application Gateway

An Azure service that provides a platform-managed, scalable, and highly available application delivery controller as a service.

1,345 questions
asked 2026-03-20T22:34:19.43+00:00
Ievgen Kurinnyi 20 Reputation points
answered 2026-03-27T07:59:36.0166667+00:00
Ganesh Patapati 11,530 Reputation points Microsoft External Staff Moderator
2 answers One of the answers was accepted by the question author.

Application Gateway v2 Availability Zone Pricing

Hi Support, I have a few questions about this document: https://learn.microsoft.com/en-us/azure/reliability/reliability-application-gateway-v2 My current dev environment aag is v1, with only one instance and no Availability Zone enabled. I'm now…

Azure Application Gateway
Azure Application Gateway

An Azure service that provides a platform-managed, scalable, and highly available application delivery controller as a service.

1,345 questions
asked 2026-03-26T03:22:16.34+00:00
FU JIE ZHAO 120 Reputation points
accepted 2026-03-26T09:59:25.45+00:00
FU JIE ZHAO 120 Reputation points
1 answer One of the answers was accepted by the question author.

App Gateway Doc issue

The Permissions section of the Application Gateway Infrastructure Configuration page at https://learn.microsoft.com/en-us/azure/application-gateway/configuration-infrastructure#permissions has two issues: The underlying md file markup is not right…

Azure Application Gateway
Azure Application Gateway

An Azure service that provides a platform-managed, scalable, and highly available application delivery controller as a service.

1,345 questions
asked 2026-03-24T17:25:42.57+00:00
James Denning 20 Reputation points
accepted 2026-03-25T12:55:43.2633333+00:00
James Denning 20 Reputation points
1 answer

Application Gateway stuck in a failed state

A client of ours was renewing a wildcard cert for their application gateway. It failed. And now the Gateway is stuck in a failed state. Tempted to take a copy of the config, delete, and recreate. Is there anything else we can do?

Azure Application Gateway
Azure Application Gateway

An Azure service that provides a platform-managed, scalable, and highly available application delivery controller as a service.

1,345 questions
asked 2026-03-19T04:57:39.6466667+00:00
Ben Hollamby 0 Reputation points
answered 2026-03-24T20:43:05.07+00:00
Ben Hollamby 0 Reputation points
2 answers

Convert Azure Public IP from non-zone-redundant to zone-redundant without changing IP

Hi, Is it possible to convert an existing Azure Standard Public IP (Germany West Central) from non-zone-redundant to zone-redundant while keeping the same IP address? The IP is currently in use (attached to an Application Gateway), and we would like to…

Azure Application Gateway
Azure Application Gateway

An Azure service that provides a platform-managed, scalable, and highly available application delivery controller as a service.

1,345 questions
asked 2026-03-17T11:45:30.3166667+00:00
Pavel Radkovič 0 Reputation points
answered 2026-03-24T12:56:39.9333333+00:00
Ganesh Patapati 11,530 Reputation points Microsoft External Staff Moderator
1 answer

With my application gateway, I am unable to reach my backend from public network, even though the backend is healthy and listeners are well configured

With my application gateway, I am unable to reach my backend from public network, even though the backend is healthy and listeners are well configured. Here is my configuration: My AKS cluster is hosted in the same VNET as that of my application…

Azure Application Gateway
Azure Application Gateway

An Azure service that provides a platform-managed, scalable, and highly available application delivery controller as a service.

1,345 questions
asked 2026-03-22T05:49:12.0733333+00:00
cargobuddy 20 Reputation points
answered 2026-03-24T00:41:51.7+00:00
Praveen Bandaru 11,230 Reputation points Microsoft External Staff Moderator
2 answers One of the answers was accepted by the question author.

Application Gateway is not working

We are seeing issues with application gatyeway in west us, it is not forwarding the traffic and also not able monitor the backend health. We have tried restarting, we have stopped correctly but when we try to start it is failing to start.

Azure Application Gateway
Azure Application Gateway

An Azure service that provides a platform-managed, scalable, and highly available application delivery controller as a service.

1,345 questions
asked 2026-03-10T07:56:48.5966667+00:00
Purna Durgarao Sugandhapu 40 Reputation points
accepted 2026-03-20T13:41:20.24+00:00
Purna Durgarao Sugandhapu 40 Reputation points
1 answer One of the answers was accepted by the question author.

Application Gateway “Key Vault Doesn’t Allow Access to the Managed Identity” Error Despite Proper RBAC Role Assignments

I’m using a Standard_v2 Application Gateway to serve HTTPS for a web app deployed on an Azure VM. I’ve attached a user-assigned managed identity to the Application Gateway using the Identity blade in the portal. My Key Vault is configured in Azure RBAC…

Azure Application Gateway
Azure Application Gateway

An Azure service that provides a platform-managed, scalable, and highly available application delivery controller as a service.

1,345 questions
asked 2025-04-10T20:36:15.2933333+00:00
Gavin 20 Reputation points
commented 2026-03-20T03:51:17.16+00:00
Charlie 0 Reputation points
1 answer One of the answers was accepted by the question author.

Application Gateway v2 Support in Indonesia Region

Dear Azure Support Team, I hope this ticket finds you well, this is Reena from the V1 Reporting Service team at TrendAI (Trend Micro). We are planning to deploy our production services to the Indonesia (Indonesia Central) region and require clarification…

Azure Application Gateway
Azure Application Gateway

An Azure service that provides a platform-managed, scalable, and highly available application delivery controller as a service.

1,345 questions
asked 2026-03-17T15:05:37.57+00:00
Reena Tsai (TrendAI) 20 Reputation points
commented 2026-03-18T07:55:04.7533333+00:00
Reena Tsai (TrendAI) 20 Reputation points
1 answer

Application Gateway – Review / Clarification on Current Traffic Architecture and Behavior

Hello Team, Currently, our traffic is routed through a backdoor configuration where requests flow directly from Azure Traffic Manager to Azure App Service, without passing through Application Gateway. We are in the process of transitioning to a new…

Azure Application Gateway
Azure Application Gateway

An Azure service that provides a platform-managed, scalable, and highly available application delivery controller as a service.

1,345 questions
asked 2026-03-03T22:55:04.9333333+00:00
Kanifnath Deshmukh (Infosys Ltd) 0 Reputation points Microsoft External Staff
commented 2026-03-16T17:18:26.7466667+00:00
Praveen Bandaru 11,230 Reputation points Microsoft External Staff Moderator
1 answer

Certificate Limitations for AppGateway V2

What are the certificate limitations for AppGateway V2 Standard sku? I know .pfx format is required. But what about Key-Type, Signature Algorithms, and Key-Size?

Azure Application Gateway
Azure Application Gateway

An Azure service that provides a platform-managed, scalable, and highly available application delivery controller as a service.

1,345 questions
asked 2026-02-25T19:15:38.78+00:00
Edward Hakin 10 Reputation points
commented 2026-03-16T11:08:21.9966667+00:00
Ganesh Patapati 11,530 Reputation points Microsoft External Staff Moderator
0 answers

The total cost of my subscription has gone down

The total cost of my subscription has gone down, with a previous steep rise in February replaced by zero cost in February (despite the service remaining live and in constant use throughout that period). Can anybody please explain the inconsistency/error?

Azure Application Gateway
Azure Application Gateway

An Azure service that provides a platform-managed, scalable, and highly available application delivery controller as a service.

1,345 questions
asked 2026-03-13T10:20:45.49+00:00
Neil P 0 Reputation points
commented 2026-03-13T11:51:37.4633333+00:00
Bharath Y P 7,080 Reputation points Microsoft External Staff Moderator
3 answers

Application Gateway and Key Vault only accessible using Private Endpoints (policy requirement)

So, we have an Azure Key Vault where the Application Gateway shall retrieve the SSL Certificates it needs to handle HTTPS traffic. This Key Vault is restricted (due to company policies) to only be accessible using private endpoints. According to the…

Azure Application Gateway
Azure Application Gateway

An Azure service that provides a platform-managed, scalable, and highly available application delivery controller as a service.

1,345 questions
asked 2026-03-06T12:16:07.0966667+00:00
Rune Gulbrandsen 75 Reputation points
edited a comment 2026-03-12T10:13:17.3633333+00:00
Vallepu Venkateswarlu 6,755 Reputation points Microsoft External Staff Moderator
1 answer One of the answers was accepted by the question author.

Not able to configure the private AKS cluster as backend of my Azure Application Gateway

I am struggling to configure my private AKS cluster as backend of my application gateway. Here are the facts: My AKS cluster is exposing private endpoint. My AKS cluster is on the same VNET as that of the Azure application gateway My Application…

Azure Application Gateway
Azure Application Gateway

An Azure service that provides a platform-managed, scalable, and highly available application delivery controller as a service.

1,345 questions
asked 2026-03-12T05:14:13.9766667+00:00
cargobuddy 20 Reputation points
edited an answer 2026-03-12T08:20:33.3633333+00:00
Ravi Varma Mudduluru 9,200 Reputation points Microsoft External Staff Moderator