@Perhaps Open a dedicated thread for your problem (and include a link to this one.)
In the new thread post details:
What model Fritzbox ?
What is the NAS device and O/S ?
What is the output from 'modeutl -l' ?
In the new thread post details:
What model Fritzbox ?
What is the NAS device and O/S ?
What is the output from 'modeutl -l' ?
----------
bob
bob