QNAP NAS connection

[DRONE7]

I did indeed obscure the correct credentials with 'username', 'password', and 'servername'. Simply not good practice to publish connection details. In any case, the ip is in the middle of an allowed range and the credentials work perfectly elsewhere.
Enjoy your trip!
    John

  you want to be judge jury and executioner but won't testify.
You keep saying what you "think" is the  allowed/correct/working credentials but won't supply any details (even in a PM) for debugging..lol

Both devices have different NAS hosts... 'QNAP' and 'Fileserve'...have you tried 'QNAP'
 with the errant Pi ?