Puck and wireless DMX flicker

Hi all, I have a Puck controlling some Prolight Smartbat plus wirelessly, and occasionally one or all of them will blink, or flick, off. I've looked, and all I can find is a suggestion to slow down the DMX coming out of the ports. (I've changed it from Maximum to Medium, which seems to have helped, but it could honestly be hope making me see things as it's an inconsistent thing) 

I can't find a way to get the fixtures to hold their last input on their menu or change it on the personality on the desk. 

The wireless transmitter is hung in the middle of the room. 

No other changes are coming from the desk when the flickers happen. 

If anyone has any ideas, please let me know.

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