I would try disabling the IPv6 in your Linux computer to see if you have the same success as Nacomas3. The following site shows how to disable it, as well as re-enable it. I'd use the GRUB method, as it looks to be easier, but that's up to you.
I should add that these are instructions for Ubuntu. I don't know if other Linux distros would use the same method.
I understand. I was just thinking as a troubleshooting step to help narrow down the cause.
Good morning ecoalex,
Thank you for your patience, our engineers are still actively investigating this. Should I have further questions or instructions for you, I'll post them here.
Wonderful, thank you for the confirmation ecoalex!
Thank you for providing us with the traceroute information! I'm being told that the engineers have made a couple adjustments. Please attempt to access the website, and when it likely times out, please refresh the page. It should hopefully let you through at that point!