I have a Roku Streaming Stick+ that was plugged directly into an HDMI port of my Denon AVR. It was working fine, but the Roku is fairly long so it was a tight fit in the cabinet (the cabinet was built in at the time I bought the house). I tried connecting the Roku to the same HDMI port using a one foot long Monoprice High Speed HDMI Cable Certified Premium, 4K@60Hz, HDR, 18Gbps, 36AWG, YUV, 4:4:4 - Ultra Slim Series and a female-female HDMI connector. When I tried to use the Roku, all I got was a screen on the TV with the word "ROKU" on it but nothing else (i.e. not the normal Roku home screen). I was not able to get it to do anything. I finally gave up and plugged the Roku directly into the HDMI port on the AVR and it worked fine.\n\nAny idea what the problem might be? I'm starting to wonder if it was the female-female HDMI connector.\n\nI have a Roku Ultra on one of my other systems so I can just swap the two Rokus if need be.