I cannot download a site licence software
We have confirmed that some sites related to site licensed software cannot be displayed even if you connect using the Windows VPN function, depending on your environment.
In this case, I would like you to try the following method.
【Solution 1】
If you connect to a VPN with GlobalProtect, this may solve the problem, please try it.
We have a manual on how to connect to a VPN with GlobalProtect on the following page.
SRAS VPN（Virtual Private Network）
【Solution 2】
I suspect that the problem is that IPv6 is enabled.
From the following URL, after downloading "Disable IPv6 on non-tunnel interface (excluding loopback) and IPv6 tunnel interface", execute it, restart Windows, and then try again with VPN connection. Please try it.
https://support.microsoft.com/ja-jp/help/929852/how-to-disable-ipv6-or-its-components-in-windows
For details, refer to "1-2. IPv6を無効にする" in the following manual.