We have 2 RapidPort/4 and worked as it should. We move to a new location over the weekend, the units AC plugs removed and the USB from the Server (2012 R2) was removed. All other wires were left intact.
Plugging them back into the server and testing, the first 2 lines will answer and receive a fax. The other 4 will answer, but there is no click like the other 2 and no tones before it times out. I tried re-initializing them and even removed the driver and rebooted, then added the driver back. Still nothing.