VISA: Access to the resource or remote machine is denied.

Hello. 

I am using a cRIO-9076 to communicate with a Keithley 2400 through the RS-232 port on the cRIO. I have a test vi that is built using the Keithley 2400 drivers and it works perfectly fine with the vi is located under "My Computer" in my project. If I move that vi onto the Remote NI-cRIO9076 potion of the project and try to run the vi I get a

VISA: (Hex 0xBFFF00A8 Accesstotheresourceorremotemachineisdenied............

I've seen that I need to add something to the Remote Access List on the cRIO which I find a little confusing. I want to use the serial port on the cRIO through VISA to communicate to the Keithley, so I need to give the cRIO permission on the cRIO?? I'm obviously confused. 

I've tried adding a simple * (wildcard) to the access list as a temporary solution but I will still get the same error. 

I would appreciate some guidance.

Thank you

Roth

cRIO 9076

Lab View 2013

Keithley 2400

NI-VISA 5.4.0