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I know this is a simple question (I think)

Eforcity 7 port powered hub not being recognized on the computer I want to use it on. It is recognized by another computer I do not want to use it on. I think it has something to do with the cable. Where can I find some kind of driver to put on the machine I want to use it on?

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  • Russell Stewart
    Russell Stewart May 11, 2010

    USB hubs don't require drivers (we are talking about a USB hub?). Can you give more details about the OS and age of the computer?

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Is it usb hub or directly connected to the network
if connected to the network check the lan card drivers or check if it is disable or enable

Posted on Mar 22, 2008

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The computer can not recognize drive (unknown USB device).


Method 1 - Unplug Computer So how did I finally fix the problem? Well, if you are lucky, it's a super simple solution! Try this method first and if it works, you'll have saved a lot of time.
Simply unplug your computer from the power supply. Yes that is it! Note that this does not mean just turning off your computer using the power button because most modern computers don't actually turn off completely and the motherboard will still get power. This is useful sometimes if you want to remotely wake up a computer, etc.
The motherboard is where all of hardware of the computer connects to, including the USB ports. Sometimes the motherboard needs to be "rebooted" because things can go wrong, i.e. all or some USB ports suddenly stop working. The small microprocessor on the motherboard will reload the drivers and your USB ports should hopefully be recognizing devices again.
So first turn off your computer using the Shut Down option in Windows or pressing the power button and then UNPLUG the PC from the wall outlet. Let it sit for several minutes and then plug it back in.
Method 2 - Update Device Driver If Windows is not able to recognize the device, you may also see in Device Manager that the device shows up as an "Unknown Device". You can get to Device Manager by clicking on Start and typing in devmgmt.msc or by going to Control Panel and clicking on Device Manager.
In that case, you should right-click on Unknown Device, click on Properties, then the Driver tab and then click Update Driver.

If this doesn't work, you can also try to download the driver for your device from the manufacturer's website. If the USB device is just a flash drive, then it's probably not a driver issue. However, if you are installing a USB printer, drawing pad, etc, then it might be worth downloading the driver for that specific device.

Method 3 - Restart & Disconnect USB Devices The next thing you can try is to disconnect all USB devices and then restart the machine. once you have restarted, try to connect the USB device that was causing the problem.
If that particular USB port doesn't recognize it, try another one. If the device is recognized by a different USB port, there could be a hardware problem with one of the USB ports. If no USB port recognizes the device, then keep reading because it's probably something else.

Method 4 - USB Root Hub Another thing you can try is to open Device Manager, expand USB Serial Bus Controllers, right-click on USB Root Hub and then click on Properties.
Click on the Power Management tab and uncheck the Allow the computer to turn off this device to save power box. If you have more than one USB Root Hub listed, you need to repeat these steps for each one.
Click OK and then restart your computer. Try to reconnect the USB device and see if it is recognized. If not, go back to the power management tab for each one and check the box again. If it does recognize the device, then leave them unchecked.

Method 5 - Connect Directly to PC A friend of mine ran into this issue and the cause ended up being his USB hub. He only had three USB ports on his computer, so he bought a hub where he could connect an additional 8 USB devices.
I guess this proved too much for his computer and it just started sporadically not recognizing various devices. After removing the hub and connecting the device directly to the computer, it worked just fine.
We haven't really been able to find any other solution to this problem other than reducing the number of items connected to the hub. Actually, one other solution worked, but it meant having to buy a new USB hub with more power.
If you are having this problem with Windows 8 or Windows 8.1, then you might be in luck. Microsoft has released a fix for Windows 8 not detecting USB devices properly. Make sure to install this hotfix if running Windows 8.
Method 6 - USB Troubleshooter If nothing has worked so far, you can download the Windows USB Troubleshooter Fixit tool. It's a free tool that works with Windows XP, Vista and 7.
You can either have the troubleshooter fix the problems for you or select the fixes yourself. I would just let it fix them for you since the choices can sometimes be confusing and technical for the novice user.
Method 7 - Update Generic USB Hub If you are getting the Unknown Device error in Device Manager, you can also try one other thing. Open Device Manager and then expand Universal Serial Bus Controllers.
You should see at least one item called Generic USB Hub. On some computers, you might see two, three or more of these. Right-click on the first one and choose Update Driver Software.
When the update dialog pops up, choose Browse my computer for driver software.
When the update dialog pops up, choose Browse my computer for driver software.

Jul 10, 2015 | Transcend StoreJet 25 750GB USB Hard Drive

1 Answer

Im running win7, and it does not recognize this device which is a usb hub 4 port


A lot of times it won't recognize these devices until you plug something into them. Have you tried plugging in a flash drive, printer, etc to see if it's recognizing it but not showing it?

Jul 19, 2011 | Eforcity 4Port Octopus USB 20 Hub Black

2 Answers

When my computer searches for new hardware, it recognizes it and then installs it as "Unknown Device" The device still will not work, however, because when I check it in the device manager it...


This device should be recognized automaticaly by the OS. There are some issues with Windows 7, though.
Make sure you are trying to plug it in a 2. USB port, rather than 1.1. This might cause you trouble (even though this will not be a problem if you have a new computer)
Connect the hub to the external powercord. Sometimes it is not recognized because the hub cannot drain enough energy from the port.
if you are using a desktop pc, make sure it is plugged in the rear usb ports and not at the ones up front.
refer to the manual for further assistance: http://www.dynexproducts.com/cms/documents/DX-B4PORT-B7PORT_09-0962_QSG_V4_ENG_Final_lr.pdf

May 22, 2011 | Dynex 7-Port USB 2.0 Hub

1 Answer

I can't seem to get the Belkin 7-port hub to work with windows 7. Whenever I plug a flashdrive into it, windows 7 doesn't give recognize the flashdrive.


windows 7 is a 64 bit OS, and still fairly new. A lot of drivers for hardware are not supporting 64 bit Operating Systems yet, maybe in the near future but right now a lot are not.
Temporarily or permanently switch to Ubuntu. I think this hub is compatible, and you can still read your Windows files in this Linux distribution.

Dec 30, 2009 | Belkin (F5U237) 7-Port USB Hub

1 Answer

My computer does not recognise my Belkin 7 port hub.


sometimes the power it gets from pc fails but if it is powered alone check outlet or strip

Oct 04, 2009 | Belkin (F5U237) 7-Port USB Hub

1 Answer

One day the Belkin 7 port hub works the next day it doesn't


Your problems with the Belkin 7 port are not due to the Dell computer or the XP OS. To problem solve, select on USB port and stay with it, not the 2 top ports for your keyboard and mouse. 1. Plug in the power adapter, wiggle it about, widen the prongs, change outlets at the 120 v. end. 2. Use an simple hand magnifier and peer closely at the DC input plug and be positive that the center post and the minue side piece of metal if in firm constact with the plug. If cannot insure a firm fit, sligtly bend that tiny metal piece towards center. Option 2, use another adaptor with the precise voltage as the original and the idential pin that inserts into the module. 3. Use another or new USB connector.
This list does not imply a specific order of diagnosis. Your fundamental problem is the failure to delive DC power to the Belkin hub or to capture the hub to USB port signal. In a phrase, you gotta short somewhere.not an issue with the computer or the XP operating system. Bill Miller

Aug 25, 2009 | Belkin (F5U237) 7-Port USB Hub

1 Answer

Usb port not recognized: power surge on hub port


Your going to need a new logic board, I know only one place that fixes creative zen players and sells the parts besides ebay.

Apr 17, 2009 | Creative Labs Zen Vision Digital Media...

1 Answer

Western Digital Passport 160 GB external HD won't load.


WinXP SP2 blocks the use of the drive because it thinks it draws too much power. But there is a simple procedure to override this (from WD site):

"Problem:
Under Windows XP, an error message of "Power Surge on Hub Port" or "USB device has exceeded the power limits of it's hub port" is displayed when connecting a USB device to a USB port on a computer or Hub.

Cause:
Under some computers, USB devices are only allowed to draw a maximum of 500 milliamps (mA) per connection from the USB port on the computer system or from a USB hub. Under the Windows XP Operating System, with the release of Service Pack 2, if a device attempts to draw more than this (500 milliamps), a USB port balloon message is displayed to indicate this over current condition. When connecting a USB device that draws power from the USB bus, a very brief over current condition is sometimes detected by the OS, and the warning message is displayed.

Resolution:
This message has no affect on the functionality of the USB port. The USB hard drive should still function correctly on the USB port regardless of the error message. To prevent the USB Power Surge Alert message from displaying, please complete the following steps:
Click on Start.

Click on Control Panel.

Double-click on the System Icon.

Click on the Hardware Tab.

Click on the Device Manager button.

Click on the + next to Universal Serial Bus Controllers to expand the selection.

Right-click and select Properties on any listing that displays USB UNIVERSAL HOST CONTROLLER.

Click on the Advanced Tab.

Check the box that says: Don't tell me about USB errors."

This works fine, and the drive works fine afterwards. I suspect it actually draws less power than they say. Maybe it has a brief power draw spike on startup, but it's running power seems less. In any case, it works fine without the Y cable. I do think it is tacky that WD doesn't give the cable for free, since my $7 Sabrent 2.5" Hard drive enclosure came with a y cable.

But most likely the drive will work fine for you. It is a lovely quiet drive, and takes up no space at all.

Feb 01, 2009 | Western Digital Passport 160GB External...

1 Answer

My Laptop does not recognize Belkin 7-Port USB Hub(F5U237v1)


Try connecting it to another port or the one on the dock since some devices can be a bit picky about what port they get plugged into.

Mar 15, 2008 | Belkin (F5U237) 7-Port USB Hub

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