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Troubleshoot if Sprint Mobile Broadband Connection Manager does not detect your AirCard 595U by Sierra Wireless

Last Updated: Nov 18, 2013

If the Connection Manager does not detect your AirCard® 595U by Sierra Wireless, it could be that:

  • Your AirCard 595U is not fully inserted into the USB port on your computer or the docking cradle
  • Your AirCard 595U drivers are not installed or not correctly installed
  • Your Windows installation is not up-to-date
  • Another application is conflicting with the Connection Manager

If your AirCard 595U is not fully inserted into the USB port on your computer or the docking cradle

The AirCard 595U needs to be fully inserted into your computer or docking cradle USB port in order for the drivers to be installed and the Connection Manager to recognize the USB Modem.

To verify if this is the issue:

  1. Remove and reinsert your AirCard 595U into the computer USB port again
  2. If this does not resolve the problem, try using another USB port on your computer if one is available.
  3. If the card is still not recognized, remove your AirCard 595U and reboot your computer. Once the computer is booted up, plug in the AirCard 595U again.

If your AirCard 595U drivers are not installed or not correctly installed

The Connection Manager needs to be installed before the AirCard 595U is inserted into your computer or docking cradle USB port. If you inserted the AirCard 595U first, follow the steps below to resolve:

  1. Safely remove the AirCard 595U from the USB port:
    • Click the Safely Remove Hardware (Windows XP) or Unplug or Eject Hardware (Windows 2000) icon in the System Tray (i.e., the icon with a green arrow that is located by the clock on the Windows taskbar)
    • Click Safely remove Lucent USB Open Host Controller (Windows XP) or Stop Stand Open HCD PCI to USB Host Controller (Windows 2000)
    • Remove the AirCard 595U from the USB port
  2. Uninstall the Connection Manager using Add/Remove Programs:
    • On your computer, click Start > Settings > Control Panel
    • Double click the Add/Remove Programs icon
    • From the list of installed programs, click to select Sprint Connection Manager
    • Click Remove or Change
    • Once the installer window appears, click Next if no options appear
    • From the option screen, click to select Remove from the list and then click Next
    • If prompted to Confirm Uninstall, click OK
    • If necessary, click Remove and then Finish
    • Once the uninstall is complete, click Restart or select Yes when prompted to restart
  3. Reinstall the Connection Manager software
  4. Insert the AirCard 595U into the computer USB port. NOTE: The drivers should now be correctly installed. This can be confirmed by checking the Device Manager to make sure there are no question marks (?), yellow exclamation marks (!), or red Xs appearing.
    • To open the Device Manager, go to Start > Settings > Control Panel and double-click System. From the Hardware tab, click Device Manager.
  5. Open the Sprint Connection Manager, and then click Go to verify that you can connect.

If your Windows installation is not up-to-date

On your computer, browse to Windows Update using an alternate Internet connection to ensure all of the latest Service Packs and updates are installed.


If another application is conflicting with the Connection Manager

Ensure that applications such as ActiveSync, HotSync, WinFax and/or other connection managers are not running in the System Tray (i.e., the icons located by the clock on the Windows taskbar) while using the Sprint Connection Manager.


If the steps above do not resolve the issue, please contact us for assistance.

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