I had the IR blaster working with my comcast box and Marantz receiver with the sony remote. For some reason it just stopped reading the signals and is no longer working. This has happened a couple times now and I was able to go back into settings and go through the setup again but with mixed results. I am using an extension for the 3.5mm IR blaster code. Has anyone had this happen to them. Nothing was turned off and I did not do any updates. Its just a matter of it working one minute and not the next. Any help would be great. The extension cord is brand new but I could understand if I got a faulty cord for some reason.