Access folder server via vpn

[jucelio_rosa]

Network 1:
- Computers in the domain
- TreuNas Core file server

- Computers access the file server normally
-firewall pfsense


Network 2:

- Firewall Rb Mikrotik
- The computers are not in the domain;
- Configuration of different ips

How are networks interconnected?

- Networks are connected via site-to-site VPN

Problem :
Network 2 computers cannot access the file server folders. Access other servers on network 1 but cannot access the file server.
The vpn is working.