Below is something you can try and if it doesn't work for you continue to reach out to support@hexos.com.
Isuse= TrueNas device gets a new ip things need to be setup manually in the TrueNas interface.
Accessing the Network Settings:
Go to the TrueNAS SCALE web interface and Navigate to the "Network" section. Once in there you need to update the ip information. We've found the the DNS Servers and or the Default Gateway are set to the old one. Update it to your new one. An example is if your new one is 192.168.3.X you need to update both to 192.168.3.1. Make sure to save the changes and reboot in TrueNas. HexOS then should have internet and be able to see your hardware.
Thank you,
HexOS Team