I checked and guest / anonymous access definitely would not work, attempting to connect to a Windows 7 SMB share. The Lock Preferences dialogue window is not passable. It looks like the Username / Password fields in this dialogue are mandatory, and entering Guest / Some-madeup-password doesn't allow the connection.
I made sure the following settings were enabled on the Win7 "server":
Control Panel\Network and Internet\Network and Sharing Center\Advanced sharing settings
- Enable file sharing for devices that use 40- or 56-bit encryption ✔
- Turn off password protected sharing ✔
I also made sure that the Share and NTFS permissions allowed Read access for Guest, and confirmed successful anonymous access with the command-line smbclient in Ubuntu.
The SMB client in LE Settings > Services > SMB client is configured with min protocol 2 and max protocol 3.
Though I could investigate further, perhaps seeing if tcpdump reveals anything, this will probably be a fruitless exercise. From a search on other posts on this forum, it seems it might well be the case that Guest access is prohibited irrespective of the version of Windows hosting the share:
Can't browse SMB shares on Krypton version
Problem with MySQL database, picture not showing and movies not available
Am I misunderstanding the above posts?