>>101225066
Have you tried mounting it with CIFS? That's what I usually do, just make sure to specify all these options in fstab and unmount the thing before disconnecting the computer from the network.
//server/share /path/to/mountpoint cifs uid=1000,gid=1000,file_mode=0755,dir_mode=0755,user,noauto,noperm,_netdev,username=username,password=password 0 0
But rsync should be able to transfer files without having to actually mount it.