I understand this is a longshot but any help would be appreciated as I am having the same issue! I am trying the NI-Visa approach, and have successfully bonded my new driver to the instrument so that it shows up in NI-Visa. My python script can connect with the device, and also send a request (*IDN?). However, I cannot get the meter to send anything back and I keep hitting my timeout limit. How did you fix it in the end? Thank you in advance