New actiontec disables MOCA bridge

[chocohol]

I recently upgraded from a nim-100 and Linksys router combination to the all-in-one Actiontec cable modem MI424-WR Rev F.

Elsewhere in the house, I also had a NIm-100 connected directly to COAX in order to provide direct internet to a PC. 

Although the device is visible via the Actiontec control panel at 192.168.1.1, it indicates that the Nim-100 connected via COAX is "cable disconnected".

The status is shown below.  How do I fix this?

Status:	Cable Disconnected
Network:	Broadband Connection
Connection Type:	Coax
MAC Address:	xxxxxxxxxxxxx(hidden)
IP Address Distribution:	Disabled
Channel:	Cable Disconnected