Im in the same boat with over 150 devices. I run monitoring software that watches the health of the physical and vms on the net, but I cant get "any" info out of the BE85s even via basic SNMP. I have...

@David-TP Yes its a managed switch (SG3824X-M2)

@David-TP FYI I was having this problem with a BE85 mesh running current firmware. When going back through the settings I noticed at the bottom of the guest network screen a reminder to set the vlan...