QMM for AD Reconfigure the DSA Agent

So I've had to change the port AD LDS is listening on because of a new systems management tool. I've reconfigured the console to point to the new port ok but I can see the agent is now failing. If I look in the DSA log, I can see the agent is still talking to the hold agent. Does anyone know how I reconfigure the agent to point to the new port?. Running v8.16 on the latest build