usb 3.0 connection problems - Galaxy Tab 3 Q&A, Help & Troubleshooting

Hi.
My tablet/notebook is an "HP Envy Rove 20-k000ea" see link below for specifications
I have a Tab 7" with the latest software and have kies 3 on my notebook
Every time i connect to my notebook my tablet constantly connects and disconnects every couple of seconds.
I have an Win8 haswell chipset notebook and all the drivers are the latset.
If i connect though a usb 2.0 hub i can connect first time no problems.
I also have an Win8.1 tablet and it connect to that`s usb 3.0 with no problems
does anybody know what is wrong?
http://h20386.www2.hp.com/UKStore/Merch/Product.aspx?id=E1L48EA&opt=ABU&sel=PCDT#merch-tech-specs
thanks
John

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