NAS setup as previously in new house, No Connection?

I previously setup my NAS by connecting it directly to the modem and using it as intended for a backup solution for a photography business, moved to a new home that changed from AT&T Fiber to more traditional Spectrum Cable internet connection.

I plugged it directly into the new modem again and nothing is allowing it to connect, I don't even know where to start as it has zero connection to the network, all I have is blinking lights on the enclosure itself.

Thanks!