I am configuring my Slingbox, and everything seems to work fine with finding the network, cable provider, cable box type etc. When it gets to the screen to test the streaming the video shows fine. It then shows my remote and asks me to test it by changing the channel. I change the channel just fine and then within 10 seconds of the change, I get error code S-307. This error is consistent with both using my desktop PC and my cell phone. I reconfigure the device and setup, and it keeps doing the same thing over and over. Any clues? Thanks in advance!