On CAS/MAS appliance: can't get Windows 10 base image activated online

Products

• CAS-S400

Issue/Introduction

Not able to active the Windows 10 1909 base image.

Allowing communication to the following locations (extracted from the required ports and URLs guide)
*.bluecoat.com
*.symantec.com
*.cloudfront.net
sp.cwfservice.net
wpa.one.microsoft.com
virustotal.com

Error message:
Online activation fails/failed.

Environment

Content Analysis 3.1

Cause

W10 Activation is not receiving a response due to inability to communicate to v2 servers

Resolution

Whitelist activation domain: activation-v2.sls.microsoft.com (Port 443)
or
Offline activation through Microsoft.

Activation domain was not present in the required ports, protocols and urls documentation, as of December 29th, 2020. We will adjust documentation of required ports and urls to include this domain.