Ok, couple of issues, in reverse order of importance:
1. The firmware updater can't find my TS. I've confirmed it's on the same subnet. I have the updater loaded on my desktop, which is hardwired to my router. I also disabled the antivirus and firewall before trying to run it. Any ideas?
2. This is the big one: I just replaced HD1 a few weeks ago. When I couldn't get the firmware updater to find the TS, I booted into EM mode; that's when HD1 showed as faulty (Error E23); it also shows fan speed at 1020 RPM (has never indicated fan speed before), and it's running in degrade mode (I12). I just replaced the daggone HD; how can it be showing this??