NI Connection network variable connection issue

[kodj]

Hi All,

I have c# application that connect to NI CFP device. Everything is exposed through Network variables under c# application. We are getting same error that happens randomly. Attached is the screenshoot below. At the first glance I thought we are loosing the network connection. But The network strength is high and doesn't seem to drop low. I would like to know, if there is any other point we are not considering. and how it cause that issue. And in the case it is network issue, what it is really causing the error?  

Please, we would appreciate your help.

Thank you

[rleonard3]

Hi kodj,

How randomly/often does this error happen? Did you application work prior to where you never saw this error?

[kodj]

It happens randomly every two hour or one hour. Some day it doesn't happen

[kodj]

It happens randomly every two hour or one hour. Some day it doesn't happen

[2Shanez]

Hi Kodj,

Just to get a better idea of what we are working with, I have a few questions. 

1. What CFP Device are you working with?

2. Has this application always experienced this issue intermittently?

3. Could you provide a description of what this application is doing?

ShaneK

[kodj]

Hi guys,

It is .NET grouting application which read from CFP 1804 device through network variable. The network architecture of grouting cart is as follow:

CFP 1804 device connected with ethernet cable to microtik device

The microtik device is connected wireless to a network  .

The .NET application run on computer which is connected to the same network.

Issue: we experience randomly disconnects even though the signal strength of network is good. We have spend time debugging the network , but we could not find where the issue.  

[jordans]

Hi kodj,

Have you tried Wiresharking the network to see what is being sent? It might be valuable to see where the issue is originating from. You can read about and download Wireshark from these links, if you are unfamiliar. 

Getting Started with Wireshark
http://www.ni.com/white-paper/6746/en/

Wireshark · Go Deep.
https://www.wireshark.org/