So, I own Avast FREE and apparently it's blocking my chromecast so I can't cast from my computer. I know it is avast's fault because after a factory reset on chromecast and disabling Avast I could cast, but as soon as I enabled avast the cast option disappeared and my computer didn't recognive any cast devices. I was told that, if I owned the full version, I could go to firewall options and change something that would enable chromecast. But this is just stupid that I can't access avast's firewall options (because it's free and it's a full version feature) and I also CAN'T access my own computer's firewall options because avast is a possessive bitch and keeps everything to itself. I'm really annoyed it makes absolutely no sense that I can't cast anything I hate avast.