Pixelstreaming streamer is disconnected

Hello everyone,

i´m trying Pixelstreaming with AWS based on this tutorial. The PixelStreamingAccessCIDR, in Cloudformation, is set to The first time i connect to the server it works but with black bars probaly 720p. The other times it displays: “Disconnected: Streamer is not connected” This happens after clicking on "Click to start"Is the problem coming from pixelstreaming or AWS? Are there some logs to check?

Thanks in advance.