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USB Modem & Powered Hubs

holdtight
Grafter
Posts: 1,634
Registered: 15-06-2007

USB Modem & Powered Hubs

I have been seeing lots of advice about using a powered hub for usb modems in the forum, i have both, a belkin 4 port hub and binatone adsl 500(courtesy of plusnet) if i plug the modem into the hub every time i reboot the modem is unrecognized and i have to plug it back into my pc to get it to work again, i have turned xp`s power saving off in device manager, am i missing something obvious or will it just not workHuh to my mind having it powered has got to be better, anyone else had or having similar probs, Bill.
2 REPLIES
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USB Modem & Powered Hubs

You should only be using a powered USB hub with your
modem,if you have a budget/old pc with a small ,say less than 300 watt power supply, nothing beats decent current direct from the pc.If you have a smallish power supply and your getting
disconnection problems then, you should use a hub.
This problem also occurs with some old via based motherboards
which have a problem with supplying the current even from a large
supply but this is an exception.
If you have to use a hub then use it solely for the modem and
if you need one for extra devices then get a second hub and
daisy chain the hubs.
If your having problems with recognition then disconnect the hub
and modem ,uninstall the modem software, go to, control panel-
system- Hardware- device manager. Uninstall the hub from your
USB devices list, uninstall any modem drivers.
Re-boot , then add the hub and allow your pc to install the drivers
then add your modem to the hub and re-install the drivers
when your pc asks for them, hopefully your operating system
will now remember the route to your modem.
With USB it also helps to have the latest service packs installed,
latest modem drivers and updated motherboard bios if
its an old motherboard.
I've also encounterd some problems in the past when powering
USB 1.1 devices with USB 2 hubs.
Some people have mentioned problems with this modem even
without a hub so I would guess the fault is with the drivers and not XP
Hope something in the above helps.
holdtight
Grafter
Posts: 1,634
Registered: 15-06-2007

USB Modem & Powered Hubs

Thanks for your advice Aleca, It is a farly powerful system so no probs with that, i had just read on the forums that people were saying connect to a hub, im having more problems with complete system freezes when browsing since installing this modem that im wearing a hole in the reset button so i`ll try and sort that first, or send it back to plusnet in bits, thanks again for your help, Bill.