Hello, I am new here and new to bitcoin mining.

I am having a problem, and I have searched for an answer, with no success.

I recently bought 5 usb asic miners (333mh). I use BitMinter, and with all of the miners plugged into my pc's usb ports everything works fine. I want to buy more miners, and possibly a Raspberry Pi, so I bought a USB Hub. The one I got is an Anker 9 port usb 3.0.

I plugged it in to one of my pc's usb 3.0 ports. I waited for the pc to recognize it, then plugged in each of the five usb miners. I waited for the pc to recognize them all. The green LED lit up steady on all of them.

I started BitMinter Client and hit start.

Three miners started working (LED went out and only flashed slightly intermittently), the other two stayed lit solid. After a while one of the others that was working lit back up steady green.

I went through unplugging them and plugging them back in one at a time, tried many different things.

I finally got the BitMinter client to say that they were all hashing, but  after a few minutes the LEDs lit up steady green on all five. The client still said that they were hashing, so I let it go for a few hours.

I checked the BitMinter webpage to see what my work per shift was, and was getting about 160 mh.

I pulled all five and plugged them back into my pc's usb ports. They are all running fine again.

Question, is there some change I need to make to the BitMinter Client so that it works with the USB hub? Is there some usb 3.0 software/firmware that my pc needs in order for this to work? Is there some procedure of plugging the miners in to the hub that will make them all work plugged into the hub?

Any help or advice on where to look for an answer will be greatly appreciated.