I have an OnPlus unit telling me that multiple devices are down. In fact, on the dashboard it shows that my Cisco SG-300-28P switch is down yet it correctly shows the OnPlus unit connected to it as a child device and working. How could that be possible if the switch is not online as the OnPlus device assumes? I can also ping the switch and connect up to it. There are a few other devices that I confirmed are up and running as well that the OnPlus unit says are down.
This seemed to happen when I enabled SNMP on my SonicWALL router and the Cisco switch to enable the device to see across VLAN's, although I can't confirm that for sure. The devices in question are actually on the native VLAN though and are on the same VLAN as the OnPlus piece. I have tried rebooting the OnPlus unit to no avail. I'm hesitant to reset the topology because that would require me to enter all of my customizations and settings again.
I guess one of my questions, on top of why this isn't working correctly, would be is there a limit to how many devices this device can monitor? Thanks as always.