It could be a firewall issue. Where are you trying to use Docker? At a company, on your own machine at home or in the cloud?
Your nslookup returns an IPv6 address aswell. What does your ping command returns? What IP does it try to use?
Or just use code blocks as you would on any technical forum, including GitHub issues. Use the </> button to start a code block or use MarkDown code blocks manually if you are using the MarkDown based message composer. More info here: How to format your forum posts
If you change the actual URL-s or domain names, it will be harder to notice the actual problems. Quotation marks are only for quoating already formatted messages. Thank you for trying 