Watch ESPN app on Apple TV 4 issues

I'm having some issues with the Watch ESPN app on my Apple TV 4. For some reason, every few minutes, it will pop up and say there are concurrent streams and it will sign me out of my account. I've changed passwords on my account so I know I'm not getting hacked. It's odd. I will sign in and autheticate through watch ESPN; it will play the stream for a few minutes; then, the concurrent streams message will pop up and the process starts all over again.

The thing is, I also have a Chromecast on the exact same tv. I sign in and play Watch ESPN through the chromecast and I have never been signed out with this error. Anyone else getting this problem? Any recommendations?