If your feeding pre killed prey try and do the mousie dance.
If your feeding F/T prey maybe its not warm enough (im sure you know it needs to be warm for the snake to be interested)
And if your feeding live, i dont know what to tell you...............exept get over to either pre killed or F/T
jk, if it was live and he didnt eat it, maybe he just wasnt hungry.I dunno
Hope that helps a little ???