tcp reset from client - utm allowed

[Halo0712]

I have a problem with scans from the printer.
same Microsoft user with same email and different IP addresses on 5 printers.
The first two configured, one on port 25 and one on 587, work, the others don't and it appears on the utm allowed action TCP reset from client, does anyone know the solution?
Thank you

[rahul_p1]

Hi, 

If possible do ping from the printer to fortigate interface IP. Is it pingable?

Enabled the NetBIOS option(under network adapter settings) in the client machine and make sure to disable Windows Defender.