I have added Juniper QFabric (QFX 3100-m) in PRTG its ping sensor is working perfect. However, I am unable to add any bandwidth or traffic sensors. I got error that please check snmp community string or sensor is not supported. I really need this to happen. I want to mention that I have confirmed snmp community string on prtg and on target device, there is no issue. I am managing many other juniper devices and having no issue at all.
Regards Mudassar Iqbal