My Plugable USB 2.0 7-Port Hub with 15W Power Adapter is having an issue with my Model B Raspberry Pi.
Looked at it yesterday and the Hub/Pi is recycling on power up every 5 secs or so (and therefore does not boot). I think normally the red light comes on and then the blue USB lights are shown afterwards. No blue lights come on anymore.
The Hub is connected to the mains power. The Pi is powered by the Hub. Attached to the Hub is also TV Stick, SD card and External Drive 1TB.
The whole configuration has been fine for 1.5 years which is when the Hub was brought.
How can I debug where the fault lies. Can I use PlugDebug to see what is the issue. Is it the Hub or the Pi? The Pi is 2.5 years old.