Issue
Backups for a protected endpoint complete with a warning that states, "Connection aborted by host machine."
Environment
NinjaOne Backup
Cause
Microsoft Windows terminated the connection because the protected endpoint went to sleep, rebooted without reconnecting to the network, or shut down long enough for the connection to time out.
Resolution
Ensure that your environment's networking configuration meets the requirements defined in our NinjaOne Backup: Troubleshooting Error Codes.