Unauthorized hotspot user can another host

Hi,
I have problem with my mikrotik configuration.
I use hotspot feature to setup my network, but when user login to our wifi without sign in they can access my network. This features only blocked for accessing internet connection but the dont block for accessing our network.

Have i idea about this?

Split the network.

Hi Jarda thanks for your reply but i already split the network between guest network and our office network.
But for the office network i already setup with the hotspot config in mikrotik

somehow people that conect to our wifi without login can access our network because the dhcp give an ip address to their device.

so they dont have an internet access but they can scan and access the sharing folder computer.

have you an idea to setting dhcp server to allow devices that only user loggin can access our network?

If the network is splitted, implement blocking rules in firewall forward chain to drop packets between the networks.