Updated to 8.1 beta.
my Nuc machine with libreelec is 192.168.1.12
in the Windows explorer i was typing \\192.168.1.12 and i was able to access the machine.
after the update when i try to access it it asks for username and password - even though i have disabled the option to ask for password.
i tried to set Maximum SMB version to 3, 2, 1 but still cannot access it..