Hi Heesun,
A "booting limit exceeded" lock down indicates the controller rebooted 5 times in a row without completing its normal/complete boot up process. This type of lock down often suggests there is a firmware or software related issue preventing the firmware from loading completely before hitting some exception.
You may clear the lock down with the following commands but there is a high likelihood that the controllers will reboot again and lock down. The console output would be very helpful here once the controllers' boot up again and encounter the exception.
- clearHardwareLockdown
- lemClearLockdown
Note: You need to run the commands in the order provided. Additionally, the second command will reboot the controller which is expected.
