user = '' works
user = 'bad user' works<==================
user = 'correct user' does not work

I think he puts the leading carrot only to show where he got an error
Else, it is so obvious

@brumm Thanks. But don't sacrify your week-end 😀

@JonB I agree, but after the original post, and after corrections of missing # and :
I tested his code and got an error on the first line using this variable until I move these lines.

Édit: But now, without moving these lines and after some indent corrections, it runs ok

@Zanmyk
And your myMenu variable is still not known in your erroneous line because you did not move it's definition myMenu = [] before it's usage

@Zanmyk And?

Perhaps @brumm could help because he wrote the original version of the SMB client

@febalci I wait for your solution because, I have the same problem with my Western Digital NAS but not with an USB key on my router...

@pyfonista just an idea, probably silly, try %26 instead &

@febalci try

user = ''
pwd = ''
smb = SMB_client(username=user,password=pwd,smb_name='MYBOOKLIVE')
smb.connect()
smb.service_name = 'dl'
tree = smb.getRemoteTree()
print(tree)