Hello,
and welcome to the forums. I run (and we test)
Hardened Repository ISO without internet connection. It does not require internet to get it connected with VBR. We have one open case (not in this forum thread) where adding
Hardened Repository to VBR fails where we still investigate why that happens. Do you also have a case open so that we can check whether it's the same error.
Besides of the
user guide, I'm not aware of HTTP proxy documentation. Do you try to use an HTTPS proxy? If yes, did you use the following format: http://proxy.dns.or.ip.address:port ? It needs to have http (without s) as prefix. And second question if you use an HTTPS proxy: is the certificate signed by your enterprise CA? Because that enterprise certificate authority would not be trusted and the connection would fail.
Summary: it works without internet in general and if not, then we need to check with support why that is (please post the case number, so that I can check with the other case)
Best regards
Hannes