The error message below is from a device that I am trying to sync a configuration, device is using TACACS:
CM0151 PRIMARY RUNNING config fetch failed for ROUTER Cause: TELNET: Failed to establish a Telnet connection to
X.X.X.X Cause connection refused.
SSH: Same message as aboove except authentication failed on device 3 times.
ACTION: Check if protocal is supported and required on device package is installed.