Not a happy customer right now. Here's what's happened. Installed my new Roamio plus, ran through the guided setup, then added the cable card and got authorized by TWC. Then hooked up my tuning adapter but the light would come on and blink for about 10 seconds and always turn off. I restarted everything (twice) same results. Called TWC cable card people and after a 20 minute conversation he deemed the tuning adapter bad, so I run and get another one. This one has a regular blinking (no 6 or 8 blink pattern). I called TWC cable card people again and spoke to Chris, who says he's done about 200 of these Roamio/Tivo setups. He has me unplug USB and power cable from TA and then plug back in the power only. He sends another hit to it but, again, it only just blinks steadily. He says it takes 6-8 minutes for it to do what it needs to do and then it should be a solid green light, but that never happens. We rinse and repeat this process a couple more times but to no success, same results. He also had me keep the USB cable unplugged until he knew we had a solid green light, but that never happened. I have the coax coming to my av cabinet to a 2 way splitter. One cable goes to the TA input and the other to Roamio. My coax is a higher grade that I personally installed about 3 years ago and the only other split in the line is where it comes into the attic (1 for internet modem and other going to av cabinet) I might also mention that my acquiring channels screen always is at 50% and it doesn't crawl to 50%, it is just there when I get to that screen by pressing guide button. Eventually it gives up and gives the canned message that it can't get channels, etc. I didn't know if that's important to say or not. He suggests that I get yet another TA but they're closed now (until Monday) so I'm stuck unless someone has some ideas I can try.