Server Stopped Responding

I have a KDL-55w900a and every now and then, Serviio will throw up and error saying server stopped responding. I don't know what is causing this.

I run WS2012E on a HP MediaSmart Server with a Q9550s Quad core machine.

Any help would be appreciated.

[Illico]

Clear devices list in serviio console, then refresh it.
You can also launch a server diagnostic in sony network menu.

just downloaded on my macbook pro-cant get it to open on my mac or bravia 55kdlex640.please help,thanx