I too struggled with the " now it is working, now it stopped, what did I do" syndrome. I have positively identified one source of this operation stoppage. I believe copyright codes or anti-copy codes stop music and video files from initiating. My new WD LiveTV was functioning without fault. I wished to view a video file I had purchased and downloaded to my computer on our home theatre. I could view all menus and thumbnails, but it would not open, and after the attempt, no other video or music files would open until I reset the box. I repeated the fault and correction many times to confirm.
I then re-“produced” the video on my editing software, and it transmitted and ran. I did the same for all 24 units of this video lesson. Everything operates unless I try to use one of the original files.
The purchased video probably has valid and justified embedded code. I cannot find any forum where Western Digital has an opportunity that this functional interference can be found and corrected.
I had been using a Diamond Media HD for several years, and became frustrated with what seemed to be random failures. I bought the WD unit which had a far better user interface, and was stumped by its failures. I took it back to Future Shop and got a replacement, which exhibited the same failures. I had already “fixed” every setting on my Win7x64, Cisco DPC3825 gateway etc. I put copies of MP3, JPEG, and mpeg2 files on a USB stick, eliminating my ethernet as a problem. WD LiveTV would work until I picked one of those videos, and until “reset” only photos and internet live would work.
I am replying to you because I can’t find anywhere that I can simply post a “cause & effect” story. Meanwhile, thousands are frustrated because their box stops, the lines to support are clogged, and dealers are getting all sorts of equipment returned! Must cost a bundle!