PC-4LIFE :
Rogue Leader :
Because its DDR4-2133 memory so there is no XMP profile for it. Thats the base clock speed.
Only overclocked memory such as DDR4-2400, 2666, 3000 etc has XMP.
I overclocked my memory to 2266, still no XMP.
On the manufacturers page it shows my RAM has XMP 2.0 support.
XMP is an overclock profile that sets the memory to the overclock speed they sell it at, if you overclock it manually, it ignores that profile (if it even existed which in your case it does not). So overclocking will not "enable" it.
Your memory is DDR4-2133 that means no overclock profile. The manufacturers page is mistaken, XMP does not apply to memory sold at 2133 mhz.