Symptom
A C1100TG is operating in controller-mode which is not supported on this platform.
Router# show version | in Router operating mode:
Router operating mode: Controller-Managed
SDWAN-related commands are not recognized.
Conditions
This issue might occur when the C1100TG gets onboarded via PNP day0 workflow.
Workaround
Boot the device to ROMMON and update the ROMMON variable manually to set the mode to Autonomous:
rommon 6 > set DEVICE_MANAGED_MODE=autonomous
rommon 7 > sync
rommon 8 > boot
Further Problem Description
Mode change logs can be inspected by reviewing the bootflash:mode_event_log file.
