cRIO loss of cummunication

[Smart111222]

This is an inquiry regarding Communication fault issue between cRIO and PC
1. We have used cRIO 9047 version with TCP/IP communication and have used LabVIEW 8.6
2. Recently we did PC replacement and upgraded LabVIEW as 2012 version. But still using cRIO 8.6 without any modification.
3. What I want to ask you is, After PC replacement, I’m experiencing disconnection of PC communication between PC and cRIO frequently.

So I'd like to ask any solution regarding this issue in case that you have any warranty experineces to solve this

[PeterFoerster]

It's a bit hard to determine the error without further information. How does the error present itself? Does it throw any error? Are you processing the error cluster in any way? What means of communication do you use(network variable, network streams)?