A resetting clock is normal. Note that an Audrey "reboots" only when it's unplugged -- there isn't any reset switch, and, miraculously, it just doesn't seem to crash. There isn't any battery-backed hardware clock, so the Audrey always queries an Internet time server when it starts up.
This seems like a questionable design decision, but when you think about the normal use case -- plug it in as you would a TV or toaster oven and leave it -- in theory the Audrey should reboot only once in its entire lifetime. (Exception: I believe that software upgrades trigger a reboot, but that's rare, too, and as far as I can tell it happens only at night when you're not using it.)
So, in the unlikely event that 3Com honored your warranty with a replacement device, you'd find that your new Audrey behaved the same way.
P.S. Get the version number by looking at the Audrey profile (action, Audrey options, about Audrey, profile).