Robert,
Here are the answers to your questions-
1. What version of NI-VISA do you have installed?
3.0.1
2. Is the scope simply not being auto-detected?
Scope is not being auto detected.
3. Does it work if you manually type in the IP address or hostname of the scope?
does not work even if I manually type in the IP address.
I am guessing if my scope has some firmware download missing from Tektronix. I will appreciate any inputs/suggestions to solve the problem.
Thanks.