Hi, I bought an PS3IR-500 this summer and I was able to make it work flawlessly with my PS3 and Harmony 880.
I can say that I'm not using the remote often when playing but it's mostly for some dvd playback and again it's not often so I can't say since when it stopped working.
What I can say is that now, everytime I issue one command on the harmony remote, it works, but all commands after will fail until I disconnect and reconnect the USB power on the PS3IR500. After the connection, one command will work (I tried many) and the next ones will not work. After the first command, the Red light stays on on the PS3IR500.
I'm using default code from harmony and set A in the Util tool.
I tried upgrading PS3, PS3IR-500 and Harmony. I even re-add the PS3-IR500 on my harmony, disconnect PS3, re-intalled IR500, etc.
I really have no clue now.
Can I have a defective unit? Any settings that I may have not thought about?