Unable to find adaptors after installing support package

I have installed the ‘Keysight IO Libraries and VISA Interface’ support package for Instrument Control Toolbox. I am not able to see the adaptor when I run:

instrhwinfo('visa')

Also, when I try to create a visa object with the command below:

instrObj = visa('agilent',instrumentVISAAddress,'InputBufferSize', 100000);

I got the error message below:

Unable to create VISA object. The required drivers may not be installed properly.

Answer 1

[MathWorks Support Team]

Please restart MATLAB after support package installation.  These errors indicate that MATLAB has not yet been restarted.