I'd pull the Ethernet cable to see if things improve, but I've only experienced issues when accessing the network...otherwise it runs fine. That yours runs okay with the network basically off is worrisome. FWIW I don't think Supersize would impact performance with respect to freezing, etc. or we would have seen that in earlier upgrades. I know TiVo Level 2 folks can read individual DVR logs, but I only know enough to be dangerous so I'm not sure if any logs are viewable if you pull and read the drive. My 2TB drive is less than 50% full so it doesn't seem to be a capacity sort of thing. I didn't know about the Netflix "bug". I'll have to read up on that...thanks for the tip.