9 Dec 2017, 00:37

@substring got it working, we simply have to add "vers=2.0" (or 2.1 / 3.0 /3.02) to the mount commands, i.e:

sharenetwork_smb1=ROMS@192.168.0.2:RecalboxRoms:username=roms,password=roms,vers=2.0
sharenetwork_smb2=SAVES@192.168.0.2:RecalboxSaves:username=roms,password=roms,vers=2.0

https://blogs.technet.microsoft.com/josebda/2013/10/02/windows-server-2012-r2-which-version-of-the-smb-protocol-smb-1-0-smb-2-0-smb-2-1-smb-3-0-or-smb-3-02-are-you-using/

1.0: Win 2k/XP/Server 2003/Server 2003 R2
2.0: Vista SP1/Server 2008
2.1: Win7/Server 2008 R2
3.0: Win8/Server 2012 (w10?)
3.02: Win8.1/Server2012 (w10?)