access from windows 7 or windows 10 on network share on windows 2003

Question

hi, since the other day the network share of a shared folder on servers 2003 using \server_name no longer works

even the hidden share of C$ is no longer reachable, both from windows 7 and from windows 10
SMB1 and SMB2 on windows 10 are enabled from control panel

i ran sc.exe qc lanmanworkstation ALL OK
ping NetbiosNameDelserver2003 ALL OK
ping server2k3.domain.local ALL OK
ping -a 192.168.1.2 ALL OK is fixed

net view server2k3 ERROR
net view x.x.x.x ALL OK
net use \server2k3\ipc$ ERROR

from powershell.exe
Get-SmbServerConfiguration | Select EnableSMB2Protocol,EnableSMB1Protocol TRUE and TRUE

can anyone help me?