I notice when I tell Google Home to "Play Salsa/Mambo Radio" in the kitchen that I cannot access that instance of Pandora on my phone. So the Pandora streaming is all happening in the CCA. If anything, the computer, phone, etc. is just sending the instructions to the Chromecast device on what to play, and from where.Ah, ok - I wasn't sure what the end to end 'path' was when casting. Good to know that the content does NOT have to go to my laptop first, then get repeated back thru the wifi/router to the CCA. So, the laptop is just a 'pointer' to the CCA on where to get the content. Makes sense.
Well, I may have an insurmountable issue then with wifi coverage; can't move the router - it is in the masterbedroom and is as close to the CCA as possible (only 15 ft - if that).
Maybe there IS something wrong with the f/w version in my CCA; 1.29.106147
Anyone else using this with good or bad results?
As for your WiFi coverage, it could just be that your CCA is somewhere in a low point (a null) in the wireless signal, despite being that close to the antenna. It's just the nature of the beast, unfortunately, and could only be fixed by trying to move the router, or adding a stronger wireless access point. My CCA in the kitchen is probably 30 feet away and through a wet plaster wall, and I've never had it skip. Yet with a signal strength meter on my phone, using my old access point, I could walk around various parts of the house or the same room and see wide swings in coverage.
And we can't also rule out that you might just have a slightly defective CCA. They've probably made hundreds of thousands of these, and there are bound to be a couple of these that get out of production with a "radio" that is perhaps a little out of whack, or having a faulty "antenna" (which could be a thin wire or even a printed circuit board trace that are less than optimal). I guess the only way to test might be to put the CCA into the room next to the router, and maybe use headphones or some other way to play it back for a while to see if it skips there also.
My firmware on both of my CCAs is the same as yours: 1.29.106147. (I am enlisted in the "preview program" where I will get advance release of new firmware, but apparently there isn't a more recent firmware available at the moment.) Could it have loaded incorrectly? Maybe...? But I would think that a bad firmware load would have just bricked the CCA, not just weaken its reception.
Once they are set up and working properly, you shouldn't hear any skipping or stuttering, so it's just a process of elimination to see what might be happening in your situation.