Details of our specific diagnostic can be found here:
I have done what you have done by casting directly using the Chromacast Home app...
However, in my case it sputters a bit and is annoying.
The Tablo gang has run a diagnostic review of my network and said it looks jammed up.
I am running a Magic Jack Phone (not being used often) and an internet radio on 24/7
I inadvertently left the magic jack off the diagram. However, that's all there is using bandwidth on my network yet they say it looks jammed up.
It's fed with 10mbps up and down. That's always been plenty.
Oddly, nothing else shows signs of slowing up.
Also, Tablo worked fine before the Firmware upgrade.....
For better or worse, I am now getting paranoid as to the actual state of my network.
I imagine my next move is to upgrade my buffalo WIFI router simply because I can't imagine CISCO switches being at fault.
It wouldn't hurt if I had some good and user friendly network diagnostic software.
However the software I have found seems to be for hard core rocket scientists only !
Glad to hear I'm not alone in this.
The question now is: what is our common thread and why isn't everyone else screaming ???