An addional thought: I spent 35 years in IT developing database applications and we would NEVER allow a situation where software does not work without putting out meaningful and accessible diagnostics. What a concept......

Thanks for your reply. My intention wasn't to criticize your support but to find helpful support, i.e., how do I open the ports (router specific), how do I make changes to Security Essentials? etc. I don't know what else I can do and judging by your support blog, getting the videos to actually play seems to be a widespread problem. Any video chat support? Any constructive reply to the identical email I sent to your support team. I haven't heard anything helpful and there has been no attempt to reply to my particular circumstances.

Just bought my chromecast. Installed it and it's working fine. BUT installed the videostream app and it's not working at all. Support doc said to run a utility for my firewall which I did. Also says to add exceptions to MS Security Essentials (but doesn't tell you how) which I did. Also says to open two ports in my firewall (but doesn't say how to do it) which I did.

Attempted the 3 separate fixes I found you recommended and it still doesn't work. The Videostream tech support recommendations are lacking. Since I bought the product to stream videos, I would appreciate some sensible support in getting this to work. Chrome casting works fine.

Using Windows 7 with MS Security Essentials going through a Motorola SBG6580 SURFBoard Gateway with modem. When attempting to stream video, I sometimes get the Firewall security prompt and sometimes it just doesn't work no diagnostics whatsoever - PC indicates it is casting the video but nothing on the TV. Videos never even get started on the TV. I tried the 3 solutions above but since you are not very coherent on the subject I'm not sure I did them correctly.

Please advise. Thanks