Problems after connecting USB 1.1 devices to an unpowered USB hub

After connecting a mouse, usb stick and an external hardrive to an unpowered USB 2.0 hub, I now get no response from any of those devices, though they had been working fine before. Other devices that I have since plugged into that same usb slot work just fine. What could possibly have happened??? I appreciate any insight!

Nance,
Welcome to the Discussions.
You did not mention if each one of these devices still works when plugged directly into the USB 1.1 port. If they do, then I cannot explain the problem. If they do not, it is possible the USB 1.1 port was overloaded with all three devices connected to the unpowered USB 2.0 hub. You may have gotten such a warning on the screen.
If you have not done so, I would disconnect all devices, shut down the powerbook, then reset the PRAM.
http://docs.info.apple.com/article.html?artnum=2238
Now test each device by connecting directly to the USB 1.1 port.
If both the USB stick and USB HD (I am assuming that you have an unpowered 2.5" HD) were mounted on the computer's desktop when this 'possible' power shortfall occurred, it could have corrupted both devices so they will not longer mount properly. Connect each device to the USB 1.1 port, then see if Disk Utility can see the device and repair any damage. The mouse may no longer work if the preferences or other software was corrupted.
If you are running an unpowered HD, I would recommend a powered USB 2.0 hub so you can connect other devices without worry.

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Message was edited by: groundliner

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Problems after connecting USB 1.1 devices to an unpowered USB hub

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