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Server frequently loses Azure SignalR connection [Azure SignalR Service is not connected yet Error]

See original GitHub issue

My ASP.NET Web API (target framework: .NET Framework 4.6.2) project frequently loses connection with Azure SignalR service (free tier). I have followed the example as shown in aspnet ‘chatroom’ example.

My client application is based on Angular JS. Messages are being sent to the clients but after a few hours, the server connection with Azure SignalR service is lost and is not established again.

As far as I understand from the MS Azure SignalR Internals documentation:

If a server connection is disconnected for network issue,

the server connection starts reconnecting automatically.

The following error is returned back in response:

Azure SignalR Service is not connected yet, please try again later

50b742fb-fbbd-491c-b8ae-2957e3e2f9c5 png

However, this does not seem to be happening i.e. server connection with Azure SignalR service is not established again.

5e878734-6613-49cc-9b2a-f5ff63bd6686 png

nuget packages:

Microsoft.AspNet.SignalR v2.4.0
Microsoft.AspNet.SignalR.Core v2.4.0
Microsoft.AspNet.SignalR.SystemWeb v2.4.0
Microsoft.Azure.SignalR.AspNet v1.0.0-preview1-10317
Microsoft.Azure.SignalR.Protocols v1.0.6

Issue Analytics

State:
Created 5 years ago
Comments:8 (4 by maintainers)

Top GitHub Comments

4reactions

vicancycommented, Feb 26, 2019

The latest v1.0.0-preview1-10330 version of ASP.NET should fix the issue.

2reactions

vicancycommented, Feb 25, 2019

We’ve identified an issue for ASP.NET that SDK does not reconnect after disconnect. There is a nightly build that contains a fix to this problem: install-package Microsoft.Azure.SignalR.AspNet -Version 1.0.0-preview1-10325 -Prerelease -Source https://www.myget.org/F/azure-signalr-dev/api/v3/index.json

The fix is planned to be released this week.

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