VLAN ID, Ch/Port and Link off for devices connected to Switch S8

Oddities have emerged lately…either due to my rearrangement of VLANs or due to some of the latest firmwares.

Some devices connected to an S8 Switch show up as connected to Route10 with a bad VLAN ID (but Port/Ch corresponds to that S8 port on Route10, e.g. W1). I have seen this earlier and it was fixed, but has now re-emerged.

Some other devices have “healed” and finally showing up at the correct network device and with the correct VLAN ID, but still no Ch/Port shown.

The first off VLAN ID is exactly the number of VLANs + 1 so it is likely mapping the VLAN outside the proper array and showing an array index instead of VLAN identifier.

All erroneous devices are connected to an S8 downstream from Route10.

One simultaneous symptom is that the traffic on the Devices tab are zero for the affected devices, while it seems ok on the S8 Switch Traffic drop down.

Another simultaneous symptom is that Native VLAN under port settings for some of the devices doesn’t easily stick, and for some reason reverts to Default and must be reconfigured multiple times. Thus, the IP is set by DHCP under the Native VLAN 1, and after reconfiguration to the correct Native VLAN it gets the correct static IP but sometimes incorrect VLAN ID, Ch/Port etc. This may or may not be related.

A reboot of all network devices made all metadata to settle at the correct values, at least for a while. I have seen it occur again, and vanish again.