Azure SignalR Service
An Azure service that is used for adding real-time communications to web applications.
170 questions
2 answers
SignalR Auto Scale In does not trigger when condition meet
I have setup a metric conditions for scale in/out of SignalR. The scale out works perfectly but it will not scale in. The conditions was at below: When the ConnectionCount (Max) is less than 930, it does not trigger. May I know how to resolve the…
Azure SignalR Service
asked 2026-03-02T06:25:03.0333333+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(112.00000000000001, 35%, 20%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EP%3C/text%3E%3C/svg%3E)
pipi
25
Reputation points
edited the question 2026-03-13T18:18:37.2133333+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(99.2, 85%, 19%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EGV%3C/text%3E%3C/svg%3E)
Golla Venkata Pavani
4,500
Reputation points Microsoft External Staff
Moderator
2 answers
SignalR Connection Latency
Hi there, Can someone explain to me in Azure SignalR metrics, what is the meter: SignalR Connection Latency? and how this could impact users connected to my application..? TIA, Jonathan
Azure SignalR Service
Azure SignalR Service
An Azure service that is used for adding real-time communications to web applications.
170 questions
asked 2026-01-21T11:28:38.0466667+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(233.6, 59%, 32%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EJR%3C/text%3E%3C/svg%3E)
Jonathan Reginald
5
Reputation points
edited an answer 2026-01-21T13:39:58.2666667+00:00
Golla Venkata Pavani
4,500
Reputation points Microsoft External Staff
Moderator
2 answers
Architecture advice for distributed load testing Azure SignalR to 1 million concurrent users with custom scenarios
I am architecting a large-scale real-time application using Azure SignalR Service (Premium Tier) and need to validate our system's performance scaling from 50k up to 1 million concurrent users. The Challenge: My requirement is to run custom…
Azure SignalR Service
Azure SignalR Service
An Azure service that is used for adding real-time communications to web applications.
170 questions
asked 2025-12-05T08:17:31.7366667+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(281.6, 30%, 37%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EBR%3C/text%3E%3C/svg%3E)
Benyamin Radmard
0
Reputation points
edited an answer 2025-12-29T14:28:28.2433333+00:00
Golla Venkata Pavani
4,500
Reputation points Microsoft External Staff
Moderator
1 answer
One of the answers was accepted by the question author.
What is the best way to use a SignalR service for my Blazor RenderMode.InteractiveServer app?
Hi all; I've read in numerous places that having my Blazor server use a SignalR service will let it handle a lot more simultaneous requests. So I want to add this. I've seen three very different ways describing how to do this: Write a ton of code …
Developer technologies | .NET | Blazor
Developer technologies | .NET | Blazor
A free and open-source web framework that enables developers to create web apps using C# and HTML, developed by Microsoft.
1,698 questions
Azure SignalR Service
Azure SignalR Service
An Azure service that is used for adding real-time communications to web applications.
170 questions
asked 2024-07-09T17:37:42.7533333+00:00
David Thielen
3,226
Reputation points
answered 2025-12-22T09:34:38.1833333+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(19.2, 2%, 11%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ES%3C/text%3E%3C/svg%3E)
Seshagrey
0
Reputation points
1 answer
Keep having connection refused or connection timeout to https://signalr-weu-exp-drax-dev-pldnsazr.service.signalr.net
Hi, Our Project keep having connection refused or connection timeout to https://signalr-weu-exp-drax-dev-pldnsazr.service.signalr.net. Could you please help to advise us? Fore example: 2025-12-09 08:26:06.805 [http-nio-8080-exec-8] INFO …
Azure SignalR Service
Azure SignalR Service
An Azure service that is used for adding real-time communications to web applications.
170 questions
asked 2025-12-09T10:20:44.2266667+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(259.20000000000005, 46%, 35%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EKH%3C/text%3E%3C/svg%3E)
Kim Hwa Khoo (DHL IT Services)
0
Reputation points
answered 2025-12-12T18:13:58.2133333+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(128, 8%, 22%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EA%3C/text%3E%3C/svg%3E)
Anonymous
1 answer
Connection to signalR from Azure function fails with 403 (Forbidden) several times a day for 5 minutes, and then works again
As titel, several times a day our connection to singalR from the azure function fails with a 403 forbidden error. After 5 minutes the connection recovers. Full Exception : Exception while executing function /Functions.OrderToSignalR --->…
Azure SignalR Service
Azure SignalR Service
An Azure service that is used for adding real-time communications to web applications.
170 questions
Azure Functions
Azure Functions
An Azure service that provides an event-driven serverless compute platform.
6,449 questions
asked 2025-02-13T10:47:50.98+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(227.2, 91%, 32%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EDP%3C/text%3E%3C/svg%3E)
Dorus Peelen
31
Reputation points
commented 2025-10-31T18:09:32.9+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(188.79999999999998, 19%, 28%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EHM%3C/text%3E%3C/svg%3E)
Helen Mamalaki
20
Reputation points
2 answers
One of the answers was accepted by the question author.
Azure SignalR Service scale-in behavior
If I have a Standard SignalR Service with ~950 connections, scale out to 2 instances (total ~1500 connections), and then scale back in when connections drop to ~700: 👉 What happens to the existing connections on the instance that gets removed during…
Azure SignalR Service
Azure SignalR Service
An Azure service that is used for adding real-time communications to web applications.
170 questions
1 answer
One of the answers was accepted by the question author.
We are receiving a 401 Unauthorized error when Azure SignalR Service tries to invoke our Azure Function App through upstream configuration.
Error: Unexpected status code invoking 'https://functionname.azurewebsites.net/runtime/webhooks/signalr?code=...' for 'hub:hub,event:processMessage,type:user,category:messages,requestType:UserMessage'. StatusCode: 401. Configuration Details Azure…
Azure SignalR Service
Azure SignalR Service
An Azure service that is used for adding real-time communications to web applications.
170 questions
asked 2025-08-06T06:13:24.6433333+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(115.19999999999999, 57.99999999999999%, 21%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EAM%3C/text%3E%3C/svg%3E)
Anand Mishra
20
Reputation points
accepted 2025-08-11T12:48:52.2966667+00:00
Anand Mishra
20
Reputation points
2 answers
One of the answers was accepted by the question author.
Signature validation in upstream web hook requests of Azure SignalR service
I'm trying (according to documentation https://learn.microsoft.com/en-us/azure/azure-signalr/concept-upstream#signature) to validate signature in incoming upstream web hook requests of Azure SignalR service. No matter what I tried, the signatures do not…
Azure SignalR Service
Azure SignalR Service
An Azure service that is used for adding real-time communications to web applications.
170 questions
asked 2025-08-01T07:26:02.71+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(140.8, 99%, 23%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EJD%3C/text%3E%3C/svg%3E)
Jan Dvořák
20
Reputation points
accepted 2025-08-01T14:28:52.7566667+00:00
Jan Dvořák
20
Reputation points
2 answers
SignalRTrigger issue in isolate azure function
I'm building a chatbot application using Azure SignalR Service and Azure Functions with the .NET 8 isolated worker model. I'm trying to use the SignalRTrigger binding to receive messages from clients in Serverless mode. Here's what I have so far: My…
Azure SignalR Service
Azure SignalR Service
An Azure service that is used for adding real-time communications to web applications.
170 questions
asked 2025-07-28T09:47:29.3566667+00:00
Anand Mishra
20
Reputation points
edited a comment 2025-07-29T06:41:11.1233333+00:00
Anand Mishra
20
Reputation points
1 answer
Related to signal R
I used signal R in my implementation but some time this is automatically disconnected and gives no response
Azure SignalR Service
Azure SignalR Service
An Azure service that is used for adding real-time communications to web applications.
170 questions
asked 2025-07-15T09:37:37.82+00:00
Anonymous
answered 2025-07-15T11:42:04.37+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(153.6, 0%, 24%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EOE%3C/text%3E%3C/svg%3E)
Obinna Ejidike
2,870
Reputation points
Volunteer Moderator
1 answer
Azure SignalR: Notifications not consistently delivered despite active client connection and correct targeting
I'm using Azure SignalR with a JavaScript/TypeScript client and an Azure Function App that sends messages via SignalR output bindings. I'm experiencing unreliable message delivery — in most cases, the connected client does not receive notifications, and…
Azure SignalR Service
Azure SignalR Service
An Azure service that is used for adding real-time communications to web applications.
170 questions
asked 2025-06-27T21:35:14.9666667+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(252.8, 10%, 34%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EMT%3C/text%3E%3C/svg%3E)
Manimala Tangudu
0
Reputation points
edited a comment 2025-07-03T15:40:23.35+00:00
Manimala Tangudu
0
Reputation points
2 answers
One of the answers was accepted by the question author.
failed to make Windows Desktop UI App in .Net Framework 4.8 SignalR client to connect to .Net Core SignalR Server
I can make IIS ASP.NET .Net Framework 4.8 SignalR client to connect to .Net Core SignalR Server. But I failed to make Windows Desktop UI App in .Net Framework 4.8 SignalR client to connect to .Net Core SignalR Server. .Net Core SignalR Server: …
Azure SignalR Service
Azure SignalR Service
An Azure service that is used for adding real-time communications to web applications.
170 questions
asked 2025-01-11T16:42:11.73+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(307.2, 6%, 39%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ENW%3C/text%3E%3C/svg%3E)
Net Wang
40
Reputation points
edited an answer 2025-06-11T05:09:28.4066667+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(227.2, 60%, 32%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EHV%3C/text%3E%3C/svg%3E)
Harshitha Veeramalla
1,306
Reputation points Microsoft External Staff
Moderator
1 answer
No metrics available for SignalR resource?
All of a sudden I can't see any monitoring for my signalR resource, when I try to create a new metric it gives me an error message saying that it can't find any metrics: What could be causing this issue?
Azure SignalR Service
Azure SignalR Service
An Azure service that is used for adding real-time communications to web applications.
170 questions
asked 2025-05-06T21:15:02.0433333+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(92.8, 41%, 18%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EDM%3C/text%3E%3C/svg%3E)
Diogo Machado
0
Reputation points
commented 2025-05-15T14:43:41.99+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(144, 36%, 23%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ESH%3C/text%3E%3C/svg%3E)
Shree Hima Bindu Maganti
7,420
Reputation points Microsoft External Staff
Moderator
1 answer
One of the answers was accepted by the question author.
Azure SignalR Service (Serverless Mode) Failing Client Connection - Upstream /connect Event Not Reaching Backend App Service
Specific Question for Azure Support: Why is the Azure SignalR Service not sending the connect event upstream to the correctly configured backend endpoint (https://backend-api-application.azurewebsites.net/api/signalr/connect) when a client attempts a…
Azure SignalR Service
Azure SignalR Service
An Azure service that is used for adding real-time communications to web applications.
170 questions
asked 2025-04-01T19:15:35.38+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(307.2, 75%, 39%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EAS%3C/text%3E%3C/svg%3E)
Adrian Stauffer
20
Reputation points
accepted 2025-04-07T15:30:42.32+00:00
Adrian Stauffer
20
Reputation points
0 answers
HTTP 403 Error with Azure Managed Identity for SignalR listKeys Action
Why is the System-Assigned Managed Identity of our Azure App Service (backend-api-application) receiving an HTTP 403 AuthorizationFailed error when attempting to perform the Microsoft.SignalRService/signalR/listKeys/action via the Azure Management API…
Azure SignalR Service
Azure SignalR Service
An Azure service that is used for adding real-time communications to web applications.
170 questions
asked 2025-04-01T12:56:48.7166667+00:00
Adrian Stauffer
20
Reputation points
commented 2025-04-01T15:45:21.04+00:00
Anonymous
1 answer
App container located in northeurope with reduced signalR performance
I have a number of azure app containers running in the region westeurope. We have a database and Azure SignalR service running in northeurope that's being used by the container apps. To reduce database latency we created a new app container…
Azure Container Apps
Azure Container Apps
An Azure service that provides a general-purpose, serverless container platform.
946 questions
Azure SignalR Service
Azure SignalR Service
An Azure service that is used for adding real-time communications to web applications.
170 questions
asked 2025-02-19T09:28:32.37+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(153.6, 65%, 24%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EAJ%3C/text%3E%3C/svg%3E)
Anton Jonsson
0
Reputation points
commented 2025-03-12T01:28:52+00:00
Shree Hima Bindu Maganti
7,420
Reputation points Microsoft External Staff
Moderator
1 answer
One of the answers was accepted by the question author.
Azure functions - SignalR output binding failure: ServiceEndpoints is empty. ConnectionString is null, empty, or consists only of white-space
I'm trying to run an Azure function using SignalR output binding in dotnet-isolated process, but I always have this error "Executed 'Functions.SendToGroup' (Failed,..) System.Private.CoreLib: Exception while executing function:…
Azure Functions
Azure Functions
An Azure service that provides an event-driven serverless compute platform.
6,449 questions
Developer technologies | .NET | Other
Developer technologies | .NET | Other
Microsoft Technologies based on the .NET software framework. Miscellaneous topics that do not fit into specific categories.
4,170 questions
Azure SignalR Service
Azure SignalR Service
An Azure service that is used for adding real-time communications to web applications.
170 questions
asked 2023-07-17T14:25:46.6+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(144, 11%, 23%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EVN%3C/text%3E%3C/svg%3E)
Valeria Naldi
145
Reputation points
commented 2025-03-07T17:15:11.61+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(76.8, 92%, 17%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EJ%3C/text%3E%3C/svg%3E)
Jimmy
5
Reputation points
1 answer
SignalR is not delivering message
SignalR is not delivering message. The service seems stop working from yesterday. I setup System Error Alert on SignalR and it emails me the system error alert when I sent a message to the signalR service and not delivering to the expected clients This…
Azure SignalR Service
Azure SignalR Service
An Azure service that is used for adding real-time communications to web applications.
170 questions
asked 2025-02-14T08:54:36.04+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(156.8, 33%, 25%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EZ%3C/text%3E%3C/svg%3E)
zigzagcloud
0
Reputation points
commented 2025-02-20T06:53:36.9466667+00:00
Shree Hima Bindu Maganti
7,420
Reputation points Microsoft External Staff
Moderator
1 answer
One of the answers was accepted by the question author.
Can't connect to Azure signalR
I can't connect to azure signalR, Here's my code. startup.cs string connectionString = System.Configuration.ConfigurationManager.AppSettings["SignalRConn"]; ConfigureAuth(app); app.MapAzureSignalR(this.GetType().FullName,…
Azure SignalR Service
Azure SignalR Service
An Azure service that is used for adding real-time communications to web applications.
170 questions
asked 2025-02-08T10:59:44.1933333+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(198.4, 2%, 29%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EGB%3C/text%3E%3C/svg%3E)
Gerald Benavente
20
Reputation points
accepted 2025-02-15T04:52:36.62+00:00
Gerald Benavente
20
Reputation points