Error -200284 when using two daq cards

[Kaladin]

I have an application written in Visual C++ that successfully reads data off of one DAQ card. However, now we want to add a second DAQ card so we can expand the number of input channels. However, I'm having trouble getting the second card working correctly. It keeps on giving 200284 whenever I try to read the input data. I've tried reading with both loops in the same thread and with them in seperate threads to no avail. Any ideas on what could be happening?

Thanks!

[Bellissima · Accepted solution]

Hello Kaladin, 

I would take a look at the link below to see the cause for the error as well as some common suggested things to try.  

http://digital.ni.com/public.nsf/allkb/FEF778AD990D5BD886256DD700770103

Best wishes!