I have an EX2 with 2 3TB WD Red drives. The NAS is hardlined to a Gigabit router and my computer is running a Killer E2500 Gigabit Card also hardlined to the same router.
The NAS will be running normally getting around 100MB/s then randomly transfer speeds will drop to 200KBs and the dashboard (local network not cloud) is unreachable. The only way I can fix this is to unplug the NAS, it returns to normal for another week or two and it all starts again. I have disabled all power saving and sleep options and have the latest firmware. I also run a hardware/system check after reboot and it reports everything is fine.
I opened a ticket about a year ago with support and they had me factory reset the device. This resolved the issue for a few months but then it came back… At this point I am way outside my warranty.
Not sure if its related, but I also never hear the fans kick on, they will run during a system check, outside of that I don’t hear anything.
Anyone have any ideas why this is happening and how I can fix it?