I had a hard drive failure on my H3 and replaced it. The 650 was working fine with the original, which had replaced a 612dvr, but did not work with the replacement. I went to the Harmony Desktop software, and in fact I must never have changed it, because it was set and working as a 612 still on the remote. So I changed it to the H3 with Sling, the software found it as such, but it won't work. Anyone got any insight into this? Logitech would be happy to help me on "pay by case" basis, awfully nice of them... Thanks.