I am using a cFP 2020 with LabVIEW RT 7.1, I am having a problem with an application I'm trying to run on the RT target, it is able to download ok but it doesn't run - I get a message saying 'network cable unplugged' and a LabVIEW error message that it has lost communication with the RT target and is switching back to the host PC. The power supply is fine and I've checked the other common problems listed in 'Trouble shooting communication problems with the Fieldpoint ethernet modules' (
http://zone.ni.com/devzone/conceptd.nsf/webmain/49E7983A1C47A3AF86256A3A005B4A3E?OpenDocument) but can't find the problem. It may be something to do with my code - simple VIs seem to run OK but the one I'm having problems with contains a dll developed using MS Visual Studio C++, the code passes the 'DLL checker' VI but could it be causing the cFP 2020 to stop communicating?