Signalr.client : The server disconnected before the handshake could be started.

[RafaelVieira2323]

Hy,

I am trying to make a connection between my mobile application on android and ios with the server that is hosted on an azure machine. And whenever I try to connect to the server to connect to the signalr service. Always give me this error: "The server disconnected before the handshake could".

[BrennanConroy]

Could you collect client and server logs? https://docs.microsoft.com/aspnet/core/signalr/diagnostics?view=aspnetcore-3.1

[RafaelVieira2323]

I will collect client and server logs. And I will insert here.

[RafaelVieira2323]

Client side:
01-13 09:03:35.323 D/Mono (11893): Assembly Ref addref System.Text.Json[0xe4cd3ee0] -> System.Threading.Tasks.Extensions[0xc76a5460]: 3
Arrebentou ao connectar:System.IO.IOException: The server disconnected before the handshake could be started.
at Microsoft.AspNetCore.SignalR.Client.HubConnection.HandshakeAsync (Microsoft.AspNetCore.SignalR.Client.HubConnection+ConnectionState startingConnectionState, System.Threading.CancellationToken cancellationToken) [0x000f6] in <82f2bec582b048f7a648dfe730be82f1>:0 01-13 09:03:35.471 I/mono-stdout(11893): Arrebentou ao connectar:System.IO.IOException: The server disconnected before the handshake could be started.

01-13 09:03:35.471 I/mono-stdout(11893): at Microsoft.AspNetCore.SignalR.Client.HubConnection.HandshakeAsync (Microsoft.AspNetCore.SignalR.Client.HubConnection+ConnectionState startingConnectionState, System.Threading.CancellationToken cancellationToken) [0x000f6] in <82f2bec582b048f7a648dfe730be82f1>:0
at Microsoft.AspNetCore.SignalR.Client.HubConnection.StartAsyncCore (System.Threading.CancellationToken cancellationToken) [0x0014a] in <82f2bec582b048f7a648dfe730be82f1>:0
at Microsoft.AspNetCore.SignalR.Client.HubConnection.StartAsyncCore (System.Threading.CancellationToken cancellationToken) [0x00217] in <82f2bec582b048f7a648dfe730be82f1>:0
at Microsoft.AspNetCore.SignalR.Client.HubConnection.StartAsyncInner (System.Threading.CancellationToken cancellationToken) [0x0019e] in <82f2bec582b048f7a648dfe730be82f1>:0
at System.Threading.Tasks.ForceAsyncAwaiter.GetResult () [0x0000c] in <82f2bec582b048f7a648dfe730be82f1>:0
at Microsoft.AspNetCore.SignalR.Client.HubConnection.StartAsync (System.Threading.CancellationToken cancellationToken) [0x00091] in <82f2bec582b048f7a648dfe730be82f1>:0 01-13 09:03:35.472 I/mono-stdout(11893): at Microsoft.AspNetCore.SignalR.Client.HubConnection.StartAsyncCore (System.Threading.CancellationToken cancellationToken) [0x0014a] in <82f2bec582b048f7a648dfe730be82f1>:0

at Opinion.ViewModels.ConnectionHub.Connect () [0x00037] in C:\Users\srvieira\Desktop\DevOps\Second_Opinion\Opinion\Opinion\ViewModels\ConnectionHub.cs:188 01-13 09:03:35.472 I/mono-stdout(11893): at Microsoft.AspNetCore.SignalR.Client.HubConnection.StartAsyncCore (System.Threading.CancellationToken cancellationToken) [0x00217] in <82f2bec582b048f7a648dfe730be82f1>:0

01-13 09:03:35.473 I/mono-stdout(11893): at Microsoft.AspNetCore.SignalR.Client.HubConnection.StartAsyncInner (System.Threading.CancellationToken cancellationToken) [0x0019e] in <82f2bec582b048f7a648dfe730be82f1>:0
01-13 09:03:35.473 I/mono-stdout(11893): at System.Threading.Tasks.ForceAsyncAwaiter.GetResult () [0x0000c] in <82f2bec582b048f7a648dfe730be82f1>:0
01-13 09:03:35.474 I/mono-stdout(11893): at Microsoft.AspNetCore.SignalR.Client.HubConnection.StartAsync (System.Threading.CancellationToken cancellationToken) [0x00091] in <82f2bec582b048f7a648dfe730be82f1>:0
01-13 09:03:35.474 I/mono-stdout(11893): at Opinion.ViewModels.ConnectionHub.Connect () [0x00037] in C:\Users\srvieira\Desktop\DevOps\Second_Opinion\Opinion\Opinion\ViewModels\ConnectionHub.cs:188
Thread finished: #12

[BrennanConroy]

That is an exception, not client side logs.
The link I provided gives a lot of information on how to create and gather both client and server logs.

If possible, could you put your code in a github repo?