Go this fixed 
by adding this line $config[‘os’][‘pfsense’][‘polling’][‘selected_ports’] = true; to my /opt/librenms/config.php
From this thread by the way Pfsense openvpn traffic not populating graphs in librenms - #41 by Usaia_Tawakevou
Go this fixed by adding this line $config[‘os’][‘pfsense’][‘polling’][‘selected_ports’] = true; to my /opt/librenms/config.php
From this thread by the way Pfsense openvpn traffic not populating graphs in librenms - #41 by Usaia_Tawakevou