That’s what I use and it constantly fails.
It is only the pac12 now app that I have casted from four different devices to Chromecast not working. Despite me watching Youtube, Hulu, Movies Anywhere, Facebook just fine with no refreshes no breaks at all in the shows we watch. The moment I try to take that s**tty app from the s**ttiest college football network in the nation onto Chromecast it doesn’t work.
I remember the Mountain. Pac12 Network is a pile of s**t. Also because Silocon Valley is located within the PAC12 footprint makes it all the more disappointing.