Container station: Docker access Application When you use a YAML file to create an Application in Container station, QNAP will create a private network. Hence, you will not be able to connect to it, for example with your nginx proxy forwarder. Go to your Container station Select the application and the containers details, one by one Click "Edit" and open network section Remove the "connected networks" and add the network your other dockers are connected on fe. Default(NAT) Connect, and repeat this for all the containers in the application   Optional steps: 1. Get in a shell of your nginx docker and curl to verify it can communicate with the container