Winxp sp3 andwin7 cannot recognized its USB adapter saying that it is an unknown device, i've tried to remove it from device manager and reboot, i also tried to update the driver through windows update but no luck.. i followed the instruction in the manual, install the software before inserting the adapter but nothing happens, the EG tray at the lower right of my screen saying that "No LAN Card Exist".

USB hard drive is a portable external storage device that works just like a conventional hard drive. The device is simply plugged into a USB port on your computer as you would connect a flash drive. Unlike a flash drive, however, a USB hard drive can store a much larger amount of data. If your computer will not recognize your USB hard drive, you can try troubleshooting steps to resolve the problem.

Plug one end of the USB cable into the port on your hard drive and plug the other end into the USB port of your computer. Ensure that both ends of the cable are connected securely. Open "My Computer" (Windows XP) or "Computer" (Windows Vista/7). The USB device should be listed as "removable disk" once it is plugged into the computer. If it is not listed among the available drives on your computer, proceed to the next step. Ensure that the data cable is working properly. Try another USB cable if you have one available. Disconnect all other USB devices from the computer as they may interfere with the operating system detecting the external hard drive. Reboot the computer if the USB hard drive is still not recognized. Plug the USB cable into another USB port and check to see if the device is detected. If you are using a USB hub, remove the device and plug the external hard drive directly into a USB port. If the computer still fails to recognize the device, the external hard drive itself may be experiencing a hardware problem. Check the status of the hard drive in the "Device Manager" window. Under Windows XP, right click "My Computer" and select "Device Manager." For Windows Vista and Windows 7, click the "Windows" button in the lower left corner of the screen, then type "Computer Management" in the search bar and press "Enter." Select "Device Manager" in the "Computer Management" window. In the Device Manager window, click the "+" sign that appears beside "Disk Drives." If the external drive is not listed, click "Other Devices" in the Device Manager window and see if an "Unknown Device" appears. The external hard drive may have been detected but the device is not working properly. If it is still under warranty, take the device to the computer store where it was purchased to have it repaired or replaced. Hope this helps.

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Go HERE is the latest firmware and keep the router on to the setup page.Open the USB device manage and select updater.Or go to my computer, right click, select manage.This will open the device manager and then right click the USB adapter under network adapters and select update driver.Then select the last option from the menu and remember where is the file of the firmware so you can point the wizard to the file.

Hello.
for this problem a simple solution is here change your Harddrive USB Cable and check it its working or if its not working please check in under device manager remove USB Driver and Install it again

try downloading the drivers for the modem

Go to device manager, go to USB, uninstall and remover everything there, completely, then reboot, wait until at desktop and all loaded up, wait, NOW plug in your device, it should be recognized and any drivers installed,or asked for if asked show where drivers are in PC, then reboot, now your device should be ready to use.

You can download the drivers from the following link.

http://www.linksysbycisco.com/US/en/support

Also check if there is any unknown USB device in the device manager and remove it. Try reinstalling the adapter thereafter

regards

Sandeep

not a problem in xp sp3 under the device manager in system properties you will have a yellow circle and black exclamation mark and probably say unknown device or ethernet device. right click go to properties and in details tab you will see Device ID.. we can track OEM driver from this.

It could be the cable, but most likly it is a damaged driver. try uninstalling the printer and all the drivers then reboot and resinstall it. You could also run "sfc /scannow" to see if any system files are damaged.

you are better off getting a refund and buying a PCI wireless card and installing that instead ( linksys or netgear or something along those lines )

Go into the device manager, click on View > Show hidden devices. Look under unknown devices or under USB for unknown devices. Also check under the section relating to the type of usb device. If you find an Unknown Device, or a device with an exclamation point, right click on it and uninstall. Disconnect the device, reboot and install the drivers/software for it if any. If it's still not working check it in another computer. If you cannot get it to work in either machine, the usb plug of the device is probably damaged. Possibly a loose solder joint. Have the manufacturer send you a new one if its still under warranty.