Problem:

On farms with multiple RAS Connection Brokers(ex Publishing Agents) applying settings causes HALB to appear in "Not verified" state.

Workaround: 

• Remove HALB device from RAS Console > Apply changes.
• Go to HALB > Reset HALB configuration
• Reboot HALB Appliance
• Configure HALB Network
• Go to RAS Console and add the HALB device back.

Solution:

Upgrade Parallels RAS and HALB instances to v19 or newer