Thanks Alan for your time. > Going just by your description and the log contents, it sounds like the > wireless dongle's firmware is crashing. Or possibly something has gone > wrong with the motherboard's on-board "rate-matching" hub. > > To rule out software issues, you could try running an earlier kernel > version. If that doesn't show any problems then you may want to perform > a git bisection. > > As far as I know there have been no recent changes to ehci-hcd or > ehci-pci that could cause this to happen. > Thanks for the update, this would help me in narrowing down things. Thanks and Regards, Ajay