Rick67

I'm using this card: Intel ® EXPI9301CTBLK Gigabit CT Was thinking of reinstalling with DS3615, I'll follow your advice. I've just found out that upload speed to DS3617 is not consistent (throttled?). Was unable to properly mount an external 6TB ntfs gpt partition (fdisk -l was showing "microsoft basic data partition"). I'll let you know how it goes. Thanks again for your advice

Success Using Jun's loader 1.02a Modified using OSFmount with proper info (usb vid/pid, network mac, serial), then img burned to usb Synology 6.1 : DSM_DS3617xs_15047.pat Asrock J3710-ITX Using Intel network card (onboard realtek disabled in bios) Serial port activated in bios Using 4TB hd with basic configuration (no raid) Thanks again Jun