I’ve successfully configured my Linux VM to use my company’s proxy settings.

I’ve also manually set the proxy values on command line for pip in Windows.

In both the Eclipse installer and Eclipse itself, I set the proxy settings but it cannot access the internet.

I’m suspecting that part of the code may be faulty.

What other steps can I take to make Eclipse connect?

Eclipse Installer:

...
ERROR: org.eclipse.equinox.p2.transport.ecf code=1006 Unknown Host: https://download.eclipse.org/oomph/updates/milestone/latest/content.xml
java.net.UnknownHostException: download.eclipse.org
  at java.base/java.net.InetAddress$CachedAddresses.get(Unknown Source)
  at java.base/java.net.InetAddress.getAllByName0(Unknown Source)
  at java.base/java.net.InetAddress.getAllByName(Unknown Source)
  at java.base/java.net.InetAddress.getAllByName(Unknown Source)
...