Two router setup. Cannot see Samba share from devices connected to one router but can see it from devices on the other one. I'm able to login to my OMV server from
Access your Mi Router 2 SMB (Samba) Storage from Windows without any third party application - DEV Community
Use the Router as an SMB Server | DrayTek
networking - No SMB access when using two routers - Super User
Set up Samba and Access USB drive Connected to your Router. - YouTube
Enalble Writable FTP or Samba on a ZTE Router(Shipped as Airtel Nokia Router) - Server Fault