USB Type C port always negotiates to USB 2.0 speeds

[Geo2160]

Hello everybody,

I delayed this question since I wanted to eliminate all variables, but now I did and I still haven't figured it out.

My Crosshair VII Hero always negotiates my phone connection to USB 2.0 speeds. Here are the variables:

- Type C Cable - Ringke branded, USB 3.1 5Gbps capable and USB-PD compatible. I don't think it's USB IF certified, but it works fine on my Dell Latitude work laptop with both phones mentioned below.
Link: https://www.ringkestore.com/collections/ringke-accessories/products/ringke-usb-type-c-to-c-cable-4ft...
- Phone - tried a Pixel 2 XL and a Sony Xperia XZ3. Both USB 3.1 5Gbps capable and USB-PD compatible. The Pixel displays a "charging rapidly" prompt when I connect it, but both of them work at USB 2.0 speed.
- OS - Windows 10, 1803. Reinstalled it yesterday and for the first time ever, it connected to my XZ3 as USB 3.0. When I tried to copy some files, it disconnected after 2-3 seconds. After un-plugging and re-plugging, it negotiated its speed to USB 3.0 speed and disconnected during file transfer . Now it only connects at USB 2.0 speeds, just as before the reinstall.

Have you guys tried the Type C plug on you motherboards? What was you experience? I was pretty excited to finally have a port through which I could charge my phone and transfer my music quickly, but now I'm pretty bummed out.

[xeromist]

Have you tried installing drivers from ASUS's website rather than going with Windows default? There could be a newer chipset driver available.

[Geo2160]

All drivers have automatically been updated through Asus Grid. I just tried downloading the chipset drivers from the website, but they seem to be the same.

[xeromist]

Ah bummer. I'd probably still try another cable if you can just in case there is some difference that makes the ASUS machine more sensitive than the Dell. I realize the cables aren't cheap or widely available but it's worth trying before RMA'ing the laptop.

[romanlord0879]

Sorry to post in this old topic, but I have the same issue.

Tried to connect an external SSD with UASP support and USB 3.1 Gen2 connection to the Type C port on my x570 Motherboard, but it negotiate as USB 2.0 connection and speed (480mbps)

Tried connecting the same disk and same cable on the Type C port from an USB 3.1 Gen 2 PCI adapter installed on the motherboard, and it works fine, negotiating USB 3.1 Gen 2 connection and speed (10Gb/s)

Did someone had same issue?

@Geo2160 did you solved the issue? How? thanks

p.s.
Motherboard is an Asus ROG Strix X570-E Gaming, all drivers and AMD chipset driver are the last released from ASUS.

[greggyp89]

I am having a similar issue none of my transfer speeds on my USB ports are working fast at all. Like 20 to 40 megabytes per second