March-6th-2020, 02:47 PM
No there is something wrong with your internet connection. Did you try just to use LAN interface first without the use of WiFi. Maybe you have a standard raspberry pi to compare. Then you could install Docker manually under Raspbian OS and call a Docker pull command of your container to check internet presence and if the port is open to Docker Hub. Are you in a home network or in a office network?
„You never fail until you stop trying.“, Albert Einstein (1879 - 1955)