Edit HOSTS file and add name record for your NAS.
location:
C:\Windows\System32\Drivers\etc
For example, if you wanted to use the HOSTS file to translate a host name of a computer called “printserver” into the IP address of 192.168.0.1, you would add this line:
192.168.0.1 printserver
You can add more than one host name to the same IP address. For example, if the computer called “printserver” also acts as a scanner called “scanserver”, you could use this line:
192.168.0.1 printserver scanserver
(Edit using elevated prompt / save to other location and overwrite ... )
info : https://www.petri.com/easily-edit-hosts-file-windows-10