Symptoms:
- You are attempting to remediate your ESXi hosts to one of the vSphere versions below
vSphere ESXi 7.0 Update 3
vSphere ESXi 7.0 Update 3a
vSphere ESXi 7.0 Update 3b
- Using vLCM / Update Manager fails, with a message similar to:
Cannot download VIB: ''. This might be because of network issues or the specified VIB does NOT exist or does NOT have a proper 'read' privilege set. Please make sure the specified VIB exists and is accessible from vCenter Server.

- In the
/var/log/vmware/vmware-updatemgr/vum-server/vmware-vum-server-log4cpp.log
file, you will see error similar to:
[YYYY-MM-DD HH:MM:SS:727 'DownloadMgr' 139972188141312 ERROR] [downloadMgr, 678] Executing download job {139970836824816} throws error: HTTP Error Code: 404
Note: The preceding log excerpts are only examples. The date, time, and environmental variables may vary depending on your environment.