Hi!

I have a notebook Toshiba 2450-401. I have a problem with my USB ports. I have connected to this computer an IDE External Case with drive seagate 120 gb 7200 rpm. When I connect this drive or mouse wireless or external keyboard (all USB devices) or printer (together or not with a Hub), it works for a few minutes or hours. Then suddenly all usb devices that I have connected turn off. I will explain better: all my usb devices lost communication with my notebook just for 2 seconds, then all usb devices restart again and i have again access to them just for more minutes ou 1 or 2 hours and then again the same: I lost communication just for 2 seconds......

Please could someone help me?

Is this some hardware problem or software?

Thanks very much in advance!

Best regards,

Vitor

Open device manager, open the properties for each item listed under usb controllers and navigate to the 'power management' tab. Uncheck all the boxes listed.

Go to normal power management and disable powering down harddisks.

Is your hub self powered? if not, you are most likely taxing the usb port too hard.