3G USB Dongles stops usb ports from working

Hello , have a weird one, have a laptop that when plugged into vodafone K3770  laptop would make all the usb ports stop working, i had to uninstall the USB controllers in device manager reboot and then reboot again and the ports are working again? i have another 3G dongle and did the same thing? What can be causing this issue? I have a Toshiba c650 on windows 7 ?

Thanks
deanmachine333Asked:
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Darr247Commented:
Uninstall the connection program provided by the phone company and make a dialup connection for it in windows.
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deanmachine333Author Commented:
Hello , I have uninstalled the software for it , and when I plug in dongle it starts to install driver for it and then stops and all ports don't work, tried downloading driver before hand and still didn't help. Both dongles causing issue.
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Darr247Commented:
I would return the adapter to the provider, explain the problem it makes with the other USB ports and get a different model.
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deanmachine333Author Commented:
Hiya , the problem not with adapter as works on other pc's and laptops.
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CallandorCommented:
Possibly the power draw could be too much for the USB ports on this machine.  Connect with a powered USB hub in between and see if that makes a difference.
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deanmachine333Author Commented:
Thanks Callander !!! Spot on had power hub and USB ports working , not killing them. Thanks
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