UPDATE: at 6:41pm EST - it started working again! Woot! Have fun gaming everyone!
ORIGINAL POST: All of a sudden all the Chromecast Ultras in my house will no longer accept the Stadia Controller code. I have rebooted and reconnected wifi to no avail. Is anyone else (all of a sudden) having this issue??? I was playing fine 2 hours ago. I eat dinner and now it's not working....please help!!