In AlienVault USM Appliance, in scenarios with high latency between the server and the sensor, when trying to download a preconfigured HIDS agent installation packet the download may throw an API error "Operation cannot be Completed."
The error message is incorrect — it's actually a timeout error.
This only occurs if there is a slow, high latency, or unstable connection between the server and the sensor. This situation has been seen on setups with over 1000ms round trip time or unusually high amounts of dropped traffic.
Currently the only workaround is to install a standard HIDS installation packet and configure it manually.