New router from ISP severs my LMS connection?

I recently switched ISPs, and was provided a new modem with its own built-in router. I'd rather use my own router, but haven't got that working yet so it's out of the picture.

1. So I have all of my devices on the same 192.168.2.* network
2. A LAN scan discovers my Squeezebox Touch
3. It also discovers my NAS that hosts LMS
4. The Squeezebox Touch can connect to mysqueezebox.com BUT it cannot find my local LMS
5. I can access my NAS in the browser, BUT when I attempt to visit the LMS at port 9002, the browser returrns as "The connection was reset" error.
6. Strangely my browser can access Plex at port 32400, so I'm not sure what's going on.

I've restarted the NAS and the SBT without success.

Attached is a screenshot showing the Synology NAS installed package at http://192.168.2.16:5000/ but oddly when I click the link it resets. Something about port 9002 my new router doesn't likee?

Any other ideas?

Attached Images