The file server for the upgrade files are IPv4-only as of June 2024 and don't support IPv6
IPv6 on release 8.2.8
The fileserver for the upgrade files for Security Analytics do not provide IPv6 access.
This is a known issue and is being considered for a fix in an upcoming release of Security Analytics.
The files can be retrieved via an IPv4 host or desktop and transferred to the Security Analytics host.