I've been using a Roamio with Spectrum for years now. My area used to be Time Warner (TWC) before the buy-out. I've had the same tuning adapter (TA from here out) for ages. It's a Cisco STA1520. Had to power-cycle it every once in a while, maybe once a month or so, but it was generally pretty reliable. As of January or February of 2020, it has been a total crapshow. Behavior: SDV channels (of which there are a significant amount, especially HD premiums, on Spectrum) simply won't tune. When I check the TA diagnostics, it was a mixture of "DAVIC: not connected" in the RF Stats, or no Server IP ("Pri Ip-Port" was all zeros) under the "SWITCHED DIGITAL VIDEO" section, or occasionally no "RF Ip Addr" in that same section. Occasionally, the green light on the TA would flash a few times (seemed like 4 was the most common?) and the Tivo would stop all recordings and behave like the TA had rebooted, but it hadn't actually been restarted (and SDV channels didn't come back after this blinking, but any recording was now trashed). Reboot the TA and everything worked fine again, for some indeterminate period of time ranging from a day or two, to even a week or two if I was lucky. So I took that TA back to Spectrum and got another one. Swapped it in, and the same behavior, except actually more frequent (once every few days). Changed out the power brick as well, did not help. Got a third TA, swapped it in, same behavior, and even more frequent (like daily now). I'm getting tired of this dance. Swapping TAs is a pain in the ass with the long hold times due to covid19 (and apparently the @ask_spectrum Twitter team, who are usually much quicker and more helpful, can't handle TA swaps). Do I simply need to keep replacing TAs until I get another "good one?" Any idea why/how my first TA worked fine for years and then suddenly began to suck, could it be something in Spectrum's core/headend and not the TA at all? I have the TA sitting on top of my Roamio in a "TV stand," but it is open both front and rear (glass shelves) and there are a good 6-10 inches above the TA so it's not like it is baking in a tiny space. So I don't think it's a heat issue? Is it possible this is a TiVo issue somehow? I've replaced the USB cable between the TA and Tivo a few different times just to be safe, no changes or improvement from that. When the TA starts misbehaving, only a power-cycle / reboot of the TA helps; unplugging and replugging the USB does not.