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Devices Listed Several Times in MVP 11.0

Document ID:SO3555
 
  Properties  

Problem

Duplicate devices; Devices are duplicated in MVP; MVP displays devices several times

Environment

How to delete duplicate devices; MarkVision Professional (MVP) 11.0; System board replaced; Additional devices are being added to MVP as a result of system board replacement or alternate print server attachment.  This is due to a device detection process which utilizes the product's MAC (UAA) address.  The MVP server does not delete the existing device as it continues to respond to the unchanged IP address; however, MVP recognizes a new MAC address resulting in a duplication of the device. 

Solution

What You Will See


MVP is:

  • displaying multiple devices for the same product in the Folder Contents pane.

  • allowing each device to actively communicate and respond to end user-initiated MVP requests.

  • displaying identical settings (with the exception of the MAC/UAA address) for each device. 

Illustration


Explanation


MVP is adding a new device instead of updating the existing device.  This is due to MVP server's inability to dynamically (on-the-fly) recognize changes in a MAC/UAA address during the initial discovery process.  As a result, the settings from the newly discovered device propagate over to the existing devices and all become active. 
NOTE:  Read the following facts to help your understanding of the above explanation:
  • Replacing a system board with an integrated network adapter changes the UAA/MAC address.
  • Switching a printer to an external network adapter changes the UAA/MAC address.
  • MVP uses the UAA/MAC address to derive/resolve the PrintServer/Printer Name.
  • MVP uses TCP/IP for communication and device discovery. 
  • Hostname and IP address remain constant/unchanged after the device gets a new MAC address.


Resolution: Plug-in Installation and Deletion Process


To delete the duplicated devices, a plug-in adds a new button under Administrative Settings (see below). The DeleteDuplicateDevice function automatically detects and deletes duplicate devices that do not  have a relevant MAC address. 
  1. Download the file ENUS24499_Check_Duplicate_Devices_1_2.zip and unzip it.

  2. Install the plug-in on your MVP server.  (For information on how to install MVP plug-ins, click here.)
    Reboot your MVP server.  (Click here for instructions.)
    From the MVP server/client, click on MarkVision, then Administrative Settings.
    On the Device Discovery tab, click on the ***DeleteDuplicateDevice *** button.


Still Need Help?


Please contact Lexmark Technical Support for additional assistance.  NOTE:  When calling for support, you will need to know your printer model type and serial number.
Please call from near the MVP server/client in case the technician asks you to perform a task involving the application. 


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