I have a raspberry 3 B running Raspian Jessie Lite. The USB and ethernet ports randomly stopped working. The power is not an issue. I reimaged the SD card to see if that would fix it but now the first line that comes up during boot is "device descriptor read 64 error". I've also left the pi powered down for 2 days to see if that would fix it but I still cannot use the USB ports or Ethernet ports. The HDMI port works.
There is 5v on the pp27 terminal for the USB hubs.