The response includes serial in the JSON output.
In simple terms:
There is no problem. CE does not require a serial. Ignore the field. If you need a serial to activate pfSense Plus features, you have two options: pfsense serial number
In recent versions, such as , the serial number (or Netgate ID) is essential for software lifecycle management. The response includes serial in the JSON output
You can retrieve hardware serial information through the (Option 8 in the console menu) using these commands: Primary Command : /bin/kenv smbios.system.serial . pfsense serial number