We have bought additional HEX-S device for backup purposes, to make a replacement if previous one fails. I installed the same firmware (6.43.16) on the second and restored backup file from first device (through Winbox-Files-Backup). So, second device looks like a full copy including MAC addresses on interfaces. When I connect second device instead of first internet is working nice and it's able to connect with L2TP+IPSec from outside. But it's unable to make connection with static IPSec channels, also it's unable to connect with OpenVPN to device. When I turn back my first HEX-S everything becomes working.
Please tell me how to make a correct backup of device? Is it a manufacturing failure or some additional configuration required?