hetzner - netscan on routeros reboot

Everytime I update my RouterOS that runs in a VM in Hetzner I get messages from Hetzner that I am scanning their network on 8291 port (winbox) and on UDP 161 (snmp).
How can I stop it from doing a netscan on reboot (or upgrade I don’t know exactly) so I won’t have to explain them everytime that is not for abusing the network?
I have already disabled the WAN interface on the neighbours discovery any other dussgestions?