SignalR Failure with more than two connections

Question

I wrote a fairly simple chat application in SignalR.

It seems that if I connect to more than two tabs / browsers / devices, the third one will hang and never connect and eventually cause problems.

Why can I connect to only two users?

The third request passes as soon as I turn off one of the two.

It doesn’t matter if I use the same user or different users.

I am using IIS on Windows 10, Asp.Net MVC5 with SignalR 2.2

It never calls the hub code, if I try to connect to the fourth client, while this tab is open, the fourth tab will not even return the view.

$.connection.hub.start().done(function () {
    //add all existing messages when we start the connection
    //chat.server.addExistingMessages();
    console.log('Now connected, connection ID=' + $.connection.hub.id);

console.log never hits the third connection.

$.connection.hub.start()

It is deleted, and the connection and the hub have values ​​that are not null.

  public override Task OnConnected()
    {

, . / , .

$.connection.hub.starting(function () {
    console.log('starting')
});
$.connection.hub.received(function () {
    console.log('connection received')
});

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Answer 1

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