Access Error 404 When Connecting to NI ELVIS III From Measurements Live

Updated Jun 15, 2020

Reported In



Issue Details

When trying to Connect to my  NI ELVIS III board, through Measurements Live, I get the following error:

Access Error: 404 -- Not Found

Cannot open document for: /proxy-application.html


The error shows up in a pop-up window like the one below: 



This error occurs because the software on the board was installed incorrectly, or the LabVIEW  ELVIS III Toolkit is not installed on the board. 
Please make sure you have the following software installed in your host computer before proceeding: 
After making sure that the above software is installed in your computer, please follow the steps below to fix this issue: 
  1. Connect the  NI ELVIS III Board to the computer over USB
  2. Hold the RESET button on the NI ELVIS III board and release it when STATUS LED turns yellow.  
  3. Wait for 20 seconds for the board to restart
  4. Open NI Measurement and Automation Explorer (NI MAX) and find the  NI ELVIS III board under Remote Systems
    1. If the board does not show under Remote Systems, Right Click on Remote Systems > Troubleshoot Remote Discovery and follow the steps provided.
  5. Under the  NI ELVIS III  board in NI MAX, right click on Software > Add/Remove Software > Log into the board with your credentials. ​​​​​
  6. The LabVIEW Real-Time Software Wizard will popup > Highlight the NI ELVIS III XX.X software package
  7. Click Next > Make sure the LabVIEW ELVIS III Toolkit is checked. 
8. Click Next, and allow the software installation to finish.
9. Wait until the board comes up back again
10. Open Measurements Live and try to re-connect to the board 

Additional Information