[USR-TC] Hiper Arc Code 5.3.3

I have Hiper Arc Code 5.3.3 on a Hiper Arc. I am trying to access it via HARM 2.2.6 and it says "Your Router is running 5.3.3. HARM 5.2 works with ARC 5.2* How Can I manage this Hiper Arc with HARM? Thanks, Kris McElroy