Failure to download base ISO with openshift-install agent create image

Issue

• openshift-install agent create image fails to download the base ISO.
• Attempting to install a disconnected cluster using the Agent-based installer. A mirror registry was set up in the disconnected environment, and necessary images were mirrored for installation.
• To use the openshift-install agent wait-for, the openshift-install was installed on a machine that can communicate with the API server of the disconnected cluster.

• When executing the openshift-install agent create image on that machine, it fails with an error and cannot generate the base ISO.

  ERROR failed to write asset (Agent Installer ISO) to disk: cannot generate ISO image due to configuration errors
  FATAL failed to fetch Agent Installer ISO: failed to fetch dependency of "Agent Installer ISO": failed to fetch dependency of "Agent Installer Artifacts": failed to generate asset "BaseIso Image": failed to get base ISO image: failed to download base ISO image https://rhcos.mirror.openshift.com/art/storage/prod/streams/4.15-9.2/builds/415.92.202402130021-0/x86_64/rhcos-415.92.202402130021-0-live.x86_64.iso: Get "https://rhcos.mirror.openshift.com/art/storage/prod/streams/4.15-9.2/builds/415.92.202402130021-0/x86_64/rhcos-415.92.202402130021-0-live.x86_64.iso": dial tcp: lookup rhcos.mirror.openshift.com: i/o timeout