I have recently setup PRTG v13 to monitor a number of outbound Classes on my Cisco Routers. This worked successfully and with a bit of tweaking, managed to get the bandwidth usage on a per class basis.
I recently had to change some of the QOS configuration on the routers to include policing. Once configured, PRTG was no longer able to capture any further data from the router. I tried rescanning the router for sensors attributed to CBQOS SNMP for the router and found that since the policing command was applied to the outbound classes, PRTG no longer recognised the outbound classes as valid sensors.
Any ideas why this should be the case?