Acronis Snap Deploy Management console cannot communicate with OS Deploy Server

Why would the snap deploy management client would not be able to connect to the deployment server (on the same machine) after the IP address was changed to a DCHP address and back to the orginal IP address?

You can not change the IP address after the installation of the OS Deploy server. During boot of the agent here is an option to configure the IP address and to set to DHCP assigned or static. If you have changed it after the fact you just need to uninstall the OS Deploy Server and reinstall (Just the OS Deploy module, not everything else).