Question about Dynex 7-Port USB 2.0 Hub

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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 says that no drivers were installed, even though it says it is installing drivers during the installation process.

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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

Posted on May 22, 2011

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Try plugging in the hub *unpowered* 1st, letting the drivers install, then plugging in the external power. Worked for me for the same issue.

Posted on Aug 11, 2012

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Tip

How To Identify Unknown Devices In Your Device Manager


Unknown Device Identifier enables you to identify Unknown Devices with the yellow question mark label in your Device Manager and reports a detailed summary including the manufacturer name, OEM name, device type, device model and even the exact name of the unknown devices. With this information you might contact your hardware manufacturer for support or search the Internet for drivers. Known devices recognized by Microsoft Windows will also be analyzed independent of the operating system.<br /><br />Supported Operating Systems include: Windows 95, Windows 98, Windows 98SE, Windows Me, Windows 2000, Windows XP, Windows Server 2003, Windows Server 2008, Windows Vista, and Windows 7<br /> <ol> <li><a href="http://www.zhangduo.com/UnknownDeviceIdentifier.exe">Download Now (HTTP)</a> Size: 948KB (971,455 bytes)</li> <li>When download completes, install Unknown Device Identifier.</li> <li>Open the Unknown Device Identifier when the installation completes and wait for the program to finish Analyzing all devices on your system.</li> <li>When the Analysis is complete, find your Unidentified Device in the list of devices.</li> <li>Click the + sign next to your Unidentified Device, and use the Chip, Vendor and Device information to find and download drivers for your device.</li></ol>

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My computer wont recognize my mp3 player what do i do?


Hi Mitchell
Try this solution to your problem.
Go to Device Manager
To get to Device Manager you will:
Right click on My Computer>Properties>click the Hardware Tab>Device Manager.
After you are in Device Manager look for your MP3 player or Unit.
Here you should see no "Yellow" exclamation points.
If you do they they are telling you that you have a device conflict.
If you currently have your unit plugged in, you may notice the "unknown device" which would be your Player or Unit.
If you unit has an exclamation point by it, then you will need to click on it and delete it.
After you remove all devices with conflicts then click on refresh and search again for your MP3 player/Device.
The computer should install your device this time and solve your problem with connection of the MP3 player/Device.
Please take time to rate me.
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Hello, I just by a NWZB152, and my XP do not recognize it. I check, and i have XP sp3, and Windows Media Player 11 instaled. In Device Manager, under device status it says "Reinstall the drivers...


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What I do in such circumstances is run a little piece of freeware called "Unknown Device Identifier" which does a pretty good job of telling me what device is not working properly, identifying the manufacturer, which allows me to look up the support site and get the driver necessary to correct the problem. I've found that to be the quickest and surest way to resolve such issues.

You can also try double clicking the device in device manager and then selecting "update driver" and see if Windows can locate it on your hard drive or search the internet [providing you have a working connection] to find the appropriate driver and install it. I find it works about half of the time.

There is are other trouble shooting methods and the Microsoft Knowledge base does the most straight forward job of defining them so rather than reinvent the wheel I'll present them as written there:


The main reason for Unknown Device to display in your Device Manager is because you have a device that is not working correctly. To fix this issue, obtain an updated driver for the device.

Use the following methods to enable Windows to recognize your device. Method 1: Windows Update loadTOCNode(3, 'moreinformation'); Visit the following Microsoft Web site to see whether the Web site autodetects an updated driver for your device. Install all recommended drivers. http://www.windowsupdate.com (http://www.windowsupdate.com) Method 2: Download and install the latest driver from the Internet loadTOCNode(3, 'moreinformation'); When you download a driver from the Internet, download the Windows XP version of the driver when multiple Windows versions are listed. Use one of the following options:
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  • Visit the Web site of the device manufacturer if the device was installed after you purchased your computer.
  • Visit the Web site of the device manufacturer if the device was preinstalled on your computer and the computer manufacturer does not have an updated driver.
Look for a Drivers section or a Download section on the manufacturer’s Web site, and search for the device name. Download and install the Windows XP version of the driver. Advanced user section loadTOCNode(2, 'moreinformation'); This section is intended for advanced computer users. If you are not comfortable with advanced troubleshooting, you might want to ask someone for help or contact support. For information about how to do this, visit the following Microsoft Web site: http://support.microsoft.com/contactus (http://support.microsoft.com/contactus) Causes of unknown devices in Device Manager loadTOCNode(3, 'moreinformation');
  • The device does not have a device driver: When a device driver for a device is not available, Device Manager displays the device as Unknown Device and puts it in the Other devices branch. This is very common with universal serial bus (USB) and Institute of Electrical and Electronics Engineering (IEEE) 1394 composite devices. Also, a status of Error Code 1 or Error Code 10 may be displayed when you view the properties of the device in Device Manager.

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1 Answer

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  3. Right click on the unknown device and click on Properties.
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Give credit to Randomassist

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