Mac cannot connect to the s3.eu-central-1.amazonaws.com

I uploaded my workflow to the air with windows system laptop, while I cannot download my workflow with my Mac. There are something wrong with s3.eu-central-1.amazonaws.com connecting to the Mac machine, although I use VPN or change the DNS.

And there has another issue that the workflow cannot be dragged from the web when I use the MacOS.

Here I upload some connection problems I had with the MacOS system, if someone has solution. Hope u can share ur experience.

Thanks