Cannot deploy IPv4, connected hub with proxy - inspection failing

4.16.0-0.nightly-2024-06-14-130320

always

1.Install Openshift hub cluster using Assisted Installer (IPI job)
2.wait 40-50 minutes until error occurs
3.

Cluster won't install

Installation of hub cluster is completed

All masters have inspection errors:

time="2024-06-18T10:00:44-04:00" level=info msg="Waiting up to 1h0m0s (until 11:00AM EDT) for bootstrapping to complete..."
time="2024-06-18T10:00:44-04:00" level=info msg="  Waiting for baremetal control plane to provision..."
time="2024-06-18T10:00:44-04:00" level=info msg="  baremetalhost: openshift-master-0-0: inspecting"
time="2024-06-18T10:00:44-04:00" level=warning msg="  baremetalhost: openshift-master-0-0: inspection error: Failed to inspect hardware. Reason: unable to start inspection: Validation of image href http://0.0.0.0:8084/baa37888-331d-46c7-b51b-93825fd5dffc failed, reason: Got HTTP code 503 instead of 200 in response to HEAD request."
time="2024-06-18T10:00:44-04:00" level=info msg="  baremetalhost: openshift-master-0-1: inspecting"
time="2024-06-18T10:00:44-04:00" level=warning msg="  baremetalhost: openshift-master-0-1: inspection error: Failed to inspect hardware. Reason: unable to start inspection: Validation of image href http://0.0.0.0:8084/cfe0deef-e1d0-4af6-a86d-be380be1f099 failed, reason: Got HTTP code 503 instead of 200 in response to HEAD request."
time="2024-06-18T10:00:44-04:00" level=info msg="  baremetalhost: openshift-master-0-2: inspecting"
time="2024-06-18T10:00:44-04:00" level=warning msg="  baremetalhost: openshift-master-0-2: inspection error: Failed to inspect hardware. Reason: unable to start inspection: Validation of image href http://0.0.0.0:8084/1d897099-c17f-4458-be3f-7e659eab5218 failed, reason: Got HTTP code 503 instead of 200 in response to HEAD request."