ou've likely run out of ephemeral ports on your system
redis.exceptions.ConnectionError: Error 99 connecting to 127.0.0.1:6379. Cannot assign requested address · Issue #219 · django/channels · GitHub https://github.com/django/channels/issues/219
This is a problem with your system/kernel socket setup, not Daphne - you've likely run out of ephemeral ports on your system. Try closing down some other processes that might be using sockets or swapping the install onto a fresh server.