– Stop ‘Download Station’ from ‘Package Center’

– connect using SSH (putty) as root

– edit (i to insert, ESC 😡 to save&quit)
vi /var/packages/DownloadStation/scripts/start-stop-status

– comment line
rm ${PACKAGE_DIR}/etc/download/settings.json

– edit
vi /usr/syno/etc/packages/DownloadStation/download/settings.json

– change lines (rpc for Transmission Remote GUI)
“cache-size-mb”:64,
“rpc-whitelist-enabled”:false,

– Restart ‘Download Station’ from ‘Package Center’