Same thing is happening to me after 1 month of use, before it just beeped when ever I was using a remote (tv,avr,etc) now it started beeping until I turn it off, I had try every thing but still does the same thing help! Sunluxy h 264 network dvr 8 channels....ok I open the case up and I see the little fan is not turning, not working, I don't know if that is the culprit. I'm gonna order one of those little bastards and see if that the problem ,then I let you know..