NTOPNG not seeing my wired network

[tre4bax]

Hi there

I am using

OPNsense 22.7_4-amd64
FreeBSD 13.1-RELEASE
OpenSSL 1.1.1q 5 Jul 2022

And trying to make use of NTOPNG.  I cannot get it to keep seeing my Wired network (the one I am actually using to access the switch).   It detects no traffic despite the fact that the machine it is telling me that on is on this network.

I have three physical connections EM3=WAN, EM2=Wired(network switch),  EM1=Wireless(Poe switch).

there are three vlans on EM1 but none on EM2.   I managed to get EM2 to appear the other day by uninstalling and reinstalling NTOPNG.   When I went in two days latter to check on something it was again not there and I cannot find any way to bring it back.

What am I doing wrong here?   Do I need a VLAN for my non router Wired equipment(currently these are on 10.0.0.x where the router is 10.0.0.1)?   I have tried to get on to the NTOPNG Discord to ask this but I'm over a week down and no verification so I thought I would try here in case someone can point me in the right direction.

Many thanks for any ideas.