@gros4563 said in Unable to connect to a printer on the same VLAN inbetween router:
what would be needed
Nothing.
True, the printer can not be auto discovered by the OS on your laptop, or show up by magic in Explorer (Windows).
But you use the manual setup, and enter its IP address. That will work.
You show a cable modem with LAN IP of 10.0.0.1 and pfsense 10.0.0.2 (using DHCP ?) on its WAN.
Are you sue its a modem device ? I suspect its a router. If so, you can hook up the printer your your modem. It will get get an IP like 10.0.0.3 - and now you can also use it from your laptop using this IP.