My DNS-323, latest firmware, 2 1 TB drives, has performed flawlessly until a few weeks ago. One drive, I keep my mp3's and avi's on to stream to different computers around the house, and the other is for backups. For some reason, transfer rates have slowed down to unusable levels. I can't even stream mp3's, even with the wired computer, and it took 5 minutes to move a 3 meg file. I'm not running any special software on it or anything, and even tried a different router, to no avail. Where do I start to figure out what the prob is? Any help would be greatly appreciated.