Infrastructure Change to Azure | eu-b.docusign.net unreachable

We’ve received the reminder of the change to Azure. We are currently testing server and app access to eu-b.docusign.net but I am unable to complete “Test-NetConnection eu-b.docusign.net -Port 443” on any device connected to any network.

I can successfully reach:

demo-b.docusign.net
na1-b.docusign.net
na2-b.docusign.net
na3-b.docusign.net
na4-b.docusign.net

But not eu-b.docusign.net

Is this by design? Is that endpoint down? 
I don’t think it’s a DNS issue:

NSLOOKUP without any business info:

Non-authoritative answer:
Name:    eu-cloud.docusign.net.akadns.net
Address:  20.4.162.50
Aliases:  eu-b.docusign.net

Thanks in advance for help.
Brian