[rcouto]

Hi,

My Dell D3100 is only working on a USB 2.0 port and, even then, my ethernet port is showing that the link is not up. Here is the snippet from dmesg showing it:

[  758.074820] cdc_ncm 1-1.3.3:1.5: MAC-Address: 9c:eb:e8:2a:5b:0a
[  758.074823] cdc_ncm 1-1.3.3:1.5: setting rx_max = 16384
[  758.075078] cdc_ncm 1-1.3.3:1.5: setting tx_max = 16384
[  758.075355] cdc_ncm 1-1.3.3:1.5 usb0: register 'cdc_ncm' at usb-0000:00:1d.0-1.3.3, CDC NCM, 9c:eb:e8:2a:5b:0a
[  758.127565] cdc_ncm 1-1.3.3:1.5 enx9cebe82a5b0a: renamed from usb0
[  758.159355] IPv6: ADDRCONF(NETDEV_UP): enx9cebe82a5b0a: link is not ready
[  758.159467] IPv6: ADDRCONF(NETDEV_UP): enx9cebe82a5b0a: link is not ready

Here is the lsusb -t when connected to USB 2.0 port:

/:  Bus 03.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/4p, 5000M
/:  Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/11p, 480M
    |__ Port 4: Dev 2, If 0, Class=Human Interface Device, Driver=usbhid, 12M
    |__ Port 5: Dev 3, If 0, Class=Video, Driver=uvcvideo, 480M
    |__ Port 5: Dev 3, If 1, Class=Video, Driver=uvcvideo, 480M
    |__ Port 6: Dev 4, If 0, Class=Wireless, Driver=btusb, 12M
    |__ Port 6: Dev 4, If 1, Class=Wireless, Driver=btusb, 12M
    |__ Port 7: Dev 5, If 0, Class=Human Interface Device, Driver=usbhid, 12M
/:  Bus 01.Port 1: Dev 1, Class=root_hub, Driver=ehci-pci/2p, 480M
    |__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/8p, 480M
        |__ Port 3: Dev 16, If 0, Class=Hub, Driver=hub/4p, 480M
            |__ Port 1: Dev 20, If 0, Class=Vendor Specific Class, Driver=usbfs, 480M
            |__ Port 1: Dev 20, If 1, Class=Application Specific Interface, Driver=, 480M
            |__ Port 2: Dev 17, If 0, Class=Hub, Driver=hub/4p, 480M
                |__ Port 3: Dev 19, If 0, Class=Human Interface Device, Driver=usbhid, 1.5M
            |__ Port 3: Dev 21, If 0, Class=Vendor Specific Class, Driver=usbfs, 480M
            |__ Port 3: Dev 21, If 1, Class=Application Specific Interface, Driver=, 480M
            |__ Port 3: Dev 21, If 2, Class=Audio, Driver=snd-usb-audio, 480M
            |__ Port 3: Dev 21, If 3, Class=Audio, Driver=snd-usb-audio, 480M
            |__ Port 3: Dev 21, If 4, Class=Audio, Driver=snd-usb-audio, 480M
            |__ Port 3: Dev 21, If 5, Class=Communications, Driver=cdc_ncm, 480M
            |__ Port 3: Dev 21, If 6, Class=CDC Data, Driver=cdc_ncm, 480M
            |__ Port 4: Dev 18, If 0, Class=Human Interface Device, Driver=usbhid, 12M
            |__ Port 4: Dev 18, If 1, Class=Human Interface Device, Driver=usbhid, 12M
            |__ Port 4: Dev 18, If 2, Class=Human Interface Device, Driver=usbhid, 12M

Here is when it is connected to a USB 3.0 port:

/:  Bus 03.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/4p, 5000M
/:  Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/11p, 480M
    |__ Port 2: Dev 7, If 0, Class=Hub, Driver=hub/4p, 480M
        |__ Port 2: Dev 8, If 0, Class=Hub, Driver=hub/4p, 480M
            |__ Port 3: Dev 10, If 0, Class=Human Interface Device, Driver=usbhid, 1.5M
        |__ Port 4: Dev 9, If 0, Class=Human Interface Device, Driver=usbhid, 12M
        |__ Port 4: Dev 9, If 1, Class=Human Interface Device, Driver=usbhid, 12M
        |__ Port 4: Dev 9, If 2, Class=Human Interface Device, Driver=usbhid, 12M
    |__ Port 4: Dev 2, If 0, Class=Human Interface Device, Driver=usbhid, 12M
    |__ Port 5: Dev 3, If 0, Class=Video, Driver=uvcvideo, 480M
    |__ Port 5: Dev 3, If 1, Class=Video, Driver=uvcvideo, 480M
    |__ Port 6: Dev 4, If 0, Class=Wireless, Driver=btusb, 12M
    |__ Port 6: Dev 4, If 1, Class=Wireless, Driver=btusb, 12M
    |__ Port 7: Dev 5, If 0, Class=Human Interface Device, Driver=usbhid, 12M
/:  Bus 01.Port 1: Dev 1, Class=root_hub, Driver=ehci-pci/2p, 480M
    |__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/8p, 480M

Help!