Not possible to change the backup storage path

Hello everybody!
It is not possible to change the backup storage path from the “default” to the network folder on the NAS.
I specify the path in the my_IP/Public_folder format, but it gives an error:

Can access /
Cannot access /my_IP. No such file or directory (code: 2)
Cannot access /my_IP/Public. No such file or directory (code: 2)

All NAS permissions are granted to the user on UrServer
What is the problem? Isn’t it possible to specify a network path?

What if you mount it first and use the mountpoint in urbackup?
Seems (though not really clear) you are trying to directly use the smb/cifs/nfs path.