Join QNAP-NAS to NethServer LDAP Directory?

I think it show’s you a binary password. Perhaps Qnap doesn’t accept a binary password. Please try to create a new user at ldap. Try this user for binding.

You could also have a look here:

Also you should try ldap tls, not only ldap.

PS: Could you show us your config please, so it’s easier to help.

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