Nanostation M5 not bridging

I’ve set up several nanostations as PTP links and have had great success.

But today, I’ve spent hours trying to get one set up as a simple wireless bridge. I get it connected to the AP, which is a nanobeam HD. No vlans – I just want to bridge the wifi through the nanostation to a switch for a couple of end user devices.

But although the nanostation connects, gets a DHCP address and allows me to talk to it directly from the host network, it does not pass traffic to its LAN ports.

I’ve reset, rebooted and reconfigured until I’m blue in the face. I’ve been using it as a simple transparent wireless bridge in the setup – or so I think.

I’m using the latest firmware.

Any ideas?