I am also having similar problems. The tab where I've chosen the video, that I stream to my chromecast crashes usually after 5-15 minutes. The tab just disappears and reappears with blank "new tab". So I assume that videostream crashes. I've tried different Canary builds, fixing my McAfee antivirus (I read the instructions I found by you, but they werent perfect, but I suppose I made it right), recovered my chromecast to factory settings, recovered my Netgear router to factory settings and even reinstalled the whole windows 10 (This problem really annoys me and I had some spare time.....). Anyways, nothing has helped. First time this problem occured to me was about month ago. E: My comp specs are are following: Intel i7 4770k Nvidia GF GTX 780 8GB of ram 256GB Samsung ssd Windows 10 pro 64bit