Older versions of the firmware do not support the trending values.
The trending values for this feature are not activated in older firmware versions.
The CM4000 firmware will require upgrading to version 12.100 or greater.
Access to firmware upgrade instructions, including a how-to video and a link to the latest firmware can
be found at: Firmware Upgrade - Instructions and Downloads
Additionally, supporting documents and file downloads on this and a wide variety of other products and topics may be
obtained using the search function found at the: Download Center