Intuit Data Protect Backup Failed: Firewall or Connection Issue" indicates that the backup process for Intuit Data Protect was unsuccessful due to network-related problems. This can occur if a firewall is blocking the connection or if there are other internet connectivity issues. To resolve this, ensure that the necessary ports are open on your firewall and that your internet connection is stable. Regularly updating your firewall settings and checking for network interruptions can help prevent these issues. For persistent issues, consult QuickBooks support or a certified professional for assistance at 1.855.409.2300.