Network timed out while trying to connect to https://index.docker.io

Question

I installed Docker-Toolbox just now while following their webpage

I started with Docker QuickStart Terminal and see following

Answer 1

Update August 2016

Using Docker for Mac (version 1.12.0), was seeing issues of the form:

➜  docker pull node
Using default tag: latest
Pulling repository docker.io/library/node
Network timed out while trying to connect to https://index.docker.io/v1/repositories/library/node/images. You may want to check your internet connection or if you are behind a proxy.`enter code here`

This was resolved by updating my MacBook Pro wireless network settings to include the following DNS entry: 8.8.8.8

For further info, please see this (dated) issue which provided the answer given here.