Dude and CMI Time Clocks

Whenever I run Dude my CMI control module inc time attendance time clocks will stop responding (sending data to time server) after discovery… I have to manually reset the time clocks after I’ve turned off Dude and they work, but as soon as i fire up Dude again, they go down… anyone have a clue as to what might be going on here.

What is CMI module? Some time device, connected to LAN? Your dude on other PC in LAN?
If so, maybe during discovery Dude open some ports on CMI, and CMI stale waiting continue of that conversation, which Dude can’t give to him?