Finally I found it out.
Unfortunately on Win 7 to make a connection you account HAVE TO BE UNDER PASSWORD PROTECTION !!!
If you have your account password free, then you can connect.
I’m not sure but I think that Win7 have an option that doesn’t allow you to access folders via network without password. 99% that is the issue here. Probably you can deactivate that option and work the smb without password.
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