Fault Phenomenon: Demag smart crane remote monitoring platform shows the equipment offline, unable to obtain operational data.

Troubleshooting Process:
– Checked on-site signal strength: weak signal.
– Checked IoT gateway: gateway froze.
– Restarted gateway, installed signal booster.

Root Cause: The IoT gateway software froze or on-site communication signal was obstructed.

Required Parts: None (restart or add equipment).