Shouldn’t I use dietpi-drive_manager to mount it?
Edit: using dietpi-drive_manager to reinstall the drive on another DietPi seemed to work. Just Windows still doesn’t work
/etc/fstab
//IP/usb1 /mnt/RemotePi cifs cred=/var/lib/dietpi/dietpi-drive_manager/mnt-RemotePi.cred,iocharset=utf8,uid=dietpi,gid=dietpi,file_mode=0770,dir_mode=0770,vers=3.1.1,nofail,noauto,x-systemd.automount