Shorter cables (approx 3 feet or less) seem to work fine. The Renesas controller (at least on the older two laptops I'm using) appears to be very picky about the length of the USB 3.0 cable to either the USB 3.0 device or to a USB 3.0 hub or the use of a USB 3.0 extension cable (male to female). If using USB extender cables or longer length USB cables, try shorter cables. On the two old Toshiba laptops with the Renesas issue, the following Optional Drivers were listed and updated by Windows 10, obviously its going to be different for others with this issue:Īnother update for those with disconnection issues. Spend years trying to find ways around this issue, ended up having to put second and additional external hard drives on the USB 2.0 ports.Īfter updating the listed drivers in the Windows 10 Updates - Optional Drivers section I was able to run two external USB 3.0 hard drives on the Renesas USB 3.0 port without them (fingers crossed) or other USB 3.0 devices disconnecting. Only way to recover was disconnect the second or additional external hard drives and devices and reboot the laptop(s).

I'd plug in a second USB 3.0 hard drive (various brands, powered or unpowered) and if the drive was recognized by the Renesas controller, Renesas USB driver would shortly there after hang, freezing the USB 3.0 port, and disconnect all USB 3.0 devices. Because these laptops have a single USB 3.0 port these Renesas Extensible Host Controller issues have prevented the ability to use more than one USB 3.0 external hard drive no matter what USB 3.0 hub was used (various brands, both powered and unpowered).

I've struggled for many years with the Renesas USB 3.0 eXtensible Host Controller disconnects on two older Toshiba laptops. Install any that show up that deal with USB or PCI. if there are any optional driver-updates available, install those.Ĭheck the Windows 10 Update page for Optional Updates. In windows 10, go to settings/windows update and check for updates.

Renesas usb 3.0 controller driver