Brightstor CA ARCserve hangs in the middle of the backup process.
Auto-Protect is scanning the Brightstor CA ARCserve processes, and the firewall component, Network Threat Protection (NTP), is blocking Brightstor CA ARCserve communication.
CA has a list of recommended exclusions for these product. Follow these links to see their recommendations.
For more information on how to make these exclusions, please see How to add a Security Risk Exception in the Endpoint Protection Manager. For more information on how to create a Firewall Rule please see How to add a rule using the"Add Firewall Rule Wizard".