[CA] [CA11] Auto Pilot Not Going Steady to Wayooint

[Fish On]

Currently have a Raymarine Axiom Pro rvx, with a P70s autopilot head just installed back in June from authorized Raymarinea installer.
When I go to a waypoint and hit the autopilot, it does not go steady to the Waypoint. It's steers from Port to starboard "very heavy".
Basically going wherever it wants, or just does not know were to go. I actually wind up just hit autopilot in the same general area where the way point is.
Please advise.
Thanks!
FYI,
Have a 45' bridge boat with Diesel inboards, and Here is my current autopilot list.
12v Pump M81121 - For Use with ACU400.
-ACU400 E70100
-T70161
-M81121 Type 2 Pump.
-Evolution EV1 Sensor Core E70096
AUTOPILOT;
•1; RAT70161 Raymarine EV400 Sail Pilot No Pump T70161 Consisting of: P70S, EV1, ACU400 & CBL Kit.