Sweet, not sure if you were trying to say I should change my power adapter, but once I changed the adapter all my erupters on my rpi are working. Thanks mobile.
Wow, this is great news! I was not directly stating that changing the power adapter but cheap hubs as a whole being troublesome. Interesting to hear this solved your problem. I guess it was not suprise me. A bad power adapter would be feeding "dirt power" to your hub. I mean we can get technical with it as power supplies can dictate the Sine wave, etc etc or better stated need to produce a specific Sine wave of electricity. Cheers!