Users report ERR_CONNECTION_RESET

[dmonn]

• django-private-chat version: 0.1.6
• Django version: 1.11.1
• Python version: 3.6
• Operating System: Ubuntu 16.04 Server

Description

I have django-private-chat deployed in production.
Users sent me feedback that they get the following error sometimes (it seems to happen in corporate networks only)

WebSocket connection to XY failed: Error in connection establishment: net::ERR_CONNECTION_RESET.

The chat works fine in 90% of the cases, but this error seems to come up from time to time. Chat is embedded in an iframe (same domain), this could add to the problem.

What I Did

Made sure the chat server is running, tested the chat in my home network - seems to work fine.

Users report:

WebSocket connection to XY failed: Error in connection establishment: net::ERR_CONNECTION_RESET.

[delneg]

Can you probably try using a newer version of websockets lib ?
Seems to be similar to this issue: django/channels#549

[dmonn]

Let's try!

[dmonn]

Note @delneg, the upgrade worked, but the issue still seems to persist. I'm not sure about how to locally reproduce this though. It seems to happen in restrictive corporate environments.

[delneg]

Hello again, what do you mean by 'upgrade worked' ?
Please provide more details.
Also, you could try to implement re-connection by handling 'connection reset' events in javascript and estabilishing a new websocket connection.

[dmonn]

The upgrade of websockets didn't make any problems.
I'm already doing reconnects with https://github.com/joewalnes/reconnecting-websocket.

Again, this only seems to occur in corporate networks.

[alisarmad]

Hi everyone,
I am also facing WebSocket connection problem since last couple of days.
Error Description
"websocket.js:18 WebSocket connection to 'ws://127.0.0.1:8000/ws' failed: Error in connection establishment: net::ERR_CONNECTION_REFUSED"

Browser Console Error line Number 18, (connect @ websocket.js:18) contains following code
const path = 'ws://127.0.0.1:8000/ws'; this.socketRef = new WebSocket(path); this.socketRef.onopen = () => { console.log('WebSocket open'); };
socketRef.onclose @ websocket.js:33
``
websocket.js:29 undefined
websocket.js:32 WebSocket closed let's reopen
32Chat.js:27 wait for connection...

Detail
Django version : 2.2
Front-end with react
Using Parceljs

Websocket was working fine with Bootstrap and Django Channels, I am trying to develop one to one chat application with React front-end and Python Backend, When I tried to implement the WebSocket in react then it is giving me above mentioned error.

What I have tried
Django Channels Issue(549)

I am new to Websocket and React,
Any help will be appreciated.

[alisarmad]

I have solved the above error, actually there was my mistake, I forgot to run both servers(Backend: [python manage.py runserver], and frontend react [npm start]).

Therefore, make sure we have both servers running.