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it sounds like your pre-existing Django server is handing your request rather than channels accepting the request.

I think your issue is in how you are running your server in production.

when running channels in production you have 2 choices.

1) Run all requests through Channels (even those being handled by your normal Django views)

2) Run both your normal server instance and your channels server instance (on different local ports) with some path based reverse proxy in-front of them (such as Nginx) that routs requests to the respective local port.

Regardless of the option you select you should be running channels in production using this Guide https://channels.readthedocs.io/en/latest/deploying.html#run-protocol-servers (not python manager.py).

if you select option 1) then remember that when you run this you need it to run on the same port configuration as your old Django server used to run.

if you go with option 2) you should ensure that all of your traffic is first hitting your reverse proxy (Nginx) server. Then you can run Daphne on a different port and set up the routing in Nginx to proxy pass to the respective server instance depending on the path.