Yes, I got the Redis server ( https://github.com/MSOpenTech/redis/releases/download/win-3.2.100/Redis-x64-3.2.100.zip) as suggested in this post: redis - Error while starting Celery worker on django Error 10061 No connection could be made because the target machine actively refused it - Stack Overflow. However, the callback is still not responding.
Also, if the app is hosted in an Azure Web Service, how will the Redis server be hosted?