Gateway failover failed

To enable gateway failover, the new and old gateways must either have the same PID or share the same firmware key and DPs.

• The code for gateway failover is not implemented as described in the developer documentation. For more information, see Gateway Failover.
• The faulty gateway failed to upload the backup information to the cloud and remained online for less than 15 minutes before the fault occurred.
• During the replacement, the fault gateway did not go offline.
• The firmware version of the replaced gateway does not match the new gateway, or the Zigbee firmware is outdated.