@ITV It is true that the factory defaults for Omada devices are to use VLAN 1 and the 192.168.0.1/24 subnet. However, it is relatively easy to change this and the system works quite well as long as...

@Krusing If both sensors have the same local IP address, the gateway will always see an IP conflict. I would place another (inexpensive) router between the gateway and one of the sensors which would...

@ITV , This is getting complicated. If there are two interfaces for each VLAN, then an ACL is needed for each interface. A deny rule is needed to prevent the VLAN(s) from accessing other VLANs. One...

@ITV On the subject of the 192.168.0.0/16 entry, it is needed in the gateway in order to route all incoming 192.168.x.x traffic to the switch but in the switch all the traffic is then routed through...

@ITV I must admit that I am slightly confused. Personally, I see nothing wrong in the routing tables except for the 192.168.0.0/16 entry in the sw1's static routing table. I'm not sure you need that...

@ITV In looking at your screenshots. I only see the 192.168.180.0/24 network in the gateway's routing table and I do not see your 192.168.190.0/24 network at all. Where are their interfaces?