Louis --- did you try to reset the device back to factory .. the sometimes loose their minds when there are troubles on the network
The DS64 is reset using Option Switch 7 (OpSw7). If you have tried resetting the DS64 by closing Option Switch 7 and that has not worked for you, please try resetting the Digitrax system (DCS50/51, DB150 or DCS100/200) by closing Option Switch 39. To reset DCS52, DCS210 or DCS240 close Option Switch 40.Jan 10, 2012
If you have JMRI, it's pretty easy