Hey Alex!
How are you doing? Can you verify that you have the latest drivers? You mentioned that the file name you are using is ni488222.exe. That driver is version 2.2; however, the latest version is ni488225. I recommend you try out the 488225 drivers from the link below!
http://joule.ni.com/nidu/cds/view/p/id/335/lang/en
If you are using the correct drivers Alex, please verify so that we can explore other possible solutions! Thank you Alex
Best Regards,
Song Mu
National Instruments San Diego