Cannot Communicate with NI-VISA and Tektronix Scopes

[OLSTS]

Using Ethernet connection to communicate using NI-VISA  to Tektronix TDS3014B and TDS3034B oscilloscopes. Cannot read data from scope.

See attached for configuration and Test panel dialogs. Was working previously.(Unsure which version was working). 

[Edna-S]

Have you seen this forum post: http://forums.ni.com/t5/Signal-Generators/How-to-solve-the-NI-VISA-I-O-Error-0xBFFF003E/m-p/128672

http://ae.natinst.com/public.nsf/web/searchinternal/C1856BA713D915488625697D00614650

Are you using LabVIEW?

[OLSTS]

Looked at the form, not relevent for me. Not using Labview. Using thrid party software(Fluke, MetCal) which is working OK.

[Edna-S]

So what NI products are you using? GPIB cable? Have you downloaded correct drivers for these equipments from our website? Available at the following links.

http://sine.ni.com/apps/utf8/niid_web_display.model_page?p_model_id=164

http://sine.ni.com/apps/utf8/niid_web_display.model_page?p_model_id=168

Also make sure you go to start>> type "administrative tools" in search>>Services>>Make sure NI-Device Loader and NI-Configuration Manager are "Started" and "Automatic". 

[OLSTS]

Use PXI GPIB Card PXI-6221.

Installed all drivers and software as advised. Checked NI-loader and Configuration Manager. All OK.

Had our IT guys take a look at my Windows settings. Can it be that an update from them could cause this problem. Two updates in question: winhttp.dll
and httpapi.dll. Not sure what they do.

[freighTrain]

You mentioned that this was working before in a previous version. Are you referring to a version of NI-VISA?

[OLSTS]

Yes it is NI-VISA. I did install the older version from 2012 and the error is still there.

[Edna-S · Accepted solution]

Ok can you try a different scope, computer, cables, and see if you still get the same erros?