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I am getting an error when I try to calculate tax with Syspro 6.1 that states ""The underlying connection was closed; an unexpected error occurred on a receive "

Overview

I've placed my credentials into the proper spot and the test connection passes, however I receive an error when I try to calculate that states : "The underlying connection was closed; an unexpected error occurred on a receive." 

Environment

Avalara Avatax

Syspro

 

Resolution