millercentral
Occasional Visitor
I'm no dev, but I'm pretty sure xhci_hcd is related to the USB3 port, not networking. If you have an hard disk attached to the USB3 port, it is possible it had spun down, and then the next time you tried to access it, this message appeared while it spun back up. Assuming you have something connected to the USB3 port, try unplugging it, waiting a few seconds, then plugging it back in, or into a different port.