Look this topic viewtopic.php?f=2&t=116963

which version ROS you use?

Please add centralized storage backups of all devices under management RouterOS on dude server. For example: create backups by schedule, restore backups. As well as a choice save to internal or external storage.

I have the same problem 750gr3 router (dhcp server), dhcp leases have static 192.168.1.5 ---> rb951 (1eth master port). In bridge = eth1 + wlan. DHCP client- bridge after the update (6.38 or 6.38.1) - it works, but after the restart 951, is not getting ip ... The logs writes "dhcp, warning defc...