Satellite R830 - USB3.0 port stop working after long time usage

Hi there,
This is my new laptop. I got it just one week. However, USB 3.0 port is very weird. It always stop working when i used it for several hours. I try to update the driver, but i still seems not working.
are there any other solutions?

>well, it will stop working as well when i use it as data transfer.
So how long does it take until the USB 3.0 port stops working?
Does it interrupt the data throughput?
Did you use the USB 3.0 compatible devices?
On the Toshiba European driver page you can find the USB 3.0 driver version 2.0.34.1.
Are u using this version?

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