-For about fourteen days I went through the same agonizing grief, e.g.:
delete USB controllers and hubs, unplug devices, update drivers, etc.
Today, I went to my BIOS (AMI) ASUS motherboard and the ADVANCED tab in
BIOS menu.
I reset the USB 2.0 parameter to "enabled" and to "high speed". Why
it was "disabled" when for months 2.0 always worked, I'll never deduce.
That's all it took.
Why I never thought of it before, I'll never know.
But, all USB ports work beautifully.
Voila.
Good luck.
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Ted-T
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Re: USB 2.0 Problems