Azure SignalR withAutomaticReconnect() "Error: Connection disconnected with error" on Angular8 & Asp.Net Core 3.1

Question

hi there,

I am using Azure SignalR on Asp.Net Core 3.1 and Angular8. I also user withAutomaticReconnect() option on client side. It connect with azure signalr successfully. But after some times it show this error message and connected to the WebSocket again.

Answer 1

Hi @MdNajrullslam-2962,

Make sure you double check that your KeepAliveInterval option is double the serverTimeoutInMilliseconds property. That property will ping the SignalR hub in order to have the connection remain open.

public void ConfigureServices(IServiceCollection services)  
{  
    services.AddSignalR(hubOptions =>  
    {  
        hubOptions.EnableDetailedErrors = true;  
        hubOptions.KeepAliveInterval = TimeSpan.FromMinutes(1);  
    });  
}