I have been having the connections issues now as well. I have totally started from scratch to experiment. I have found that if I remove the password as stated by @zarkoff it will connect once. If you restart the docker and try to connect again it fails. I then have to re-add the password, start the docker, stop it again, then remove the password, restart the docker then I can connect again. I seem to have to repeat this if the docker ever has to be restarted.