Replying to Goretex jackets wetting out

I have an active gore shell that has done well so far but need the DWR layer redone to keep the water beading up and the breathability open. With that being said I had purchased XTproofer and washed my garment following the instructions on the coat tag. After the wash I sprayed on the XTproofer following instructions and found in the end that the DWR has not be rebuffed "like new" and that it worn off again within a few weeks of light use.

Any tips on getting gore and the DWR "back to new"? The original DWR lasted a long ass time...