A few years ago I could not access my nas device in any way. The device was on, but there was no connection. I checked everything and registered to the service engineer and then called. He was connected to my system and saw that I could not access the device, he told me to eject all the disks on the NAS device and turn it back on (!) That scared me but still I did the device turned on. Then when we turned it off and re-inserted and opened the discs, it did not turn on again. The device was intact but we could not access my data due to a problem with the raid structure. Turning off the device, connecting the disks and connecting a monitor keyboard to the NAS device, was the only solution to recover from the command line. He explained everything to me one by one for hours and all my data became visible after the operations we did. At the end of the day, I felt like I was trained as a QNAP Support Engineer, and I saw again that the right product was built with the support behind it.