Xfinity stream app not casting to tv

I've been an Xfinity customer for several years and have been using the Xfinity stream app to cast to TVs in my household that aren't connected to a box, for the last couple of months I haven't been able to cast my shows to any TV. I've tried everything and it just won't connect. It's not a TV issue, data speed issue, or firmware issue because other apps stream with no issue. After reading comments from customers having the same issue and the response given from Xfinity has me wondering if it's "time to cut the cord"... In a time where there's so many options available I'd hate to have to leave over something so simple to fix on their end. Seems like Comcast might find themselves in another class action lawsuit over a simple fix. The app literally has the word "stream" in it's title yet the capability to do so has been taken away. I hope this issue gets fixed soon, I'd hate to have to join the bandwagon as I have several Xfinity services that could end up cancelled also because of this issue.