After several tries, and replacement demand, this product is very bad! firmware unstable, impossible to use the setup and automatic extinguishing without it bug, admin interface almost always offline, only way to find this is to remove the heat setting of the unit (bad for disks ).
Removing Applications downloaded from the geniemarket + is very bad uninstall, failure to uninstall received.
Feel free to have a look on the side of the synology ds413j !!!!
The only positive in this story this is the QUALITY of service to Amazon.com the exchange and refund, thank you for your AMAZON customer service.
Rudy B