I just bought and initially set up a PR4100 a couple hours ago, and it's notifying me that a firmware update is available (2.21.126), however in the Firmware settings, the "Update now" button is grayed out. Additionally, the "Current Version" field is blank. Additionally, the "Update from file" button is also blank, which means that I can't manually update the firmware via that method, either. Also, no firmware update occurs via the auto-update method.
When I click on another tab in the settings menu and then click back to "Firmware Update", the "Update Now" button is momentarily clickable (for about 2 seconds), however when clicked it doesn't attempt to download the latest update, and just sits at 0% indefinitely.
Aside from that, in the "Utilities" section of the settings, both the "Scan Disk" and "Format Disk" buttons are grayed out. I can run a Disk Test (quick test, haven't tried full yet), and the system reports the drives as healthy.
Finally, and I'm not sure if this has any bearing on anything else, but the LEDs for each drive are solid red, despite the system reporting the drives as healthy.
I'd at least like to give this product the benefit of the doubt and try it out as a Plex server for two or three weeks, but at this rate I'll just end up returning it in a couple days. These kinds of issues straight out of the box are pretty discouraging :\
If anyone has any ideas on what I can try to progress with ANYTHING, I'd appreciate it. Unfortunately I'm at a loss.