Pepwave MAX BR1 - Traffic not passing between devices on LAN

Hi There,

I’ve got a couple of Pepwave MAX BR1 Devices and I have an unmanaged network switch attached to the LAN1 port on the modem. I’ve left the default firewall rules of allowing all traffic between devices on the LAN enabled and I cannot connect VNC, SSH, or any other protocol between two machines on this LAN.

Is there some other setting which would be blocking these protocols?