Is it possible to use an RB750r2 as a simple switch? I am finding these in equipment where the connected devices have static IP addresses and the RB750 is only factory configured. The RB750 appears to have port 1 acting as an uplink to another router upstream towards the internet. The upstream router is NATed for the IP addresses of the devices on the RB750 but they are not pinging.
You can bridge all the ethernet ports together.
Or pick a port as master then set other ports’ “Master port” to the master you chose.
Remember to turn of DHCP server if you have another DHCP server in your net.