@WSUSUpdateAdmin: I know that about the nl, notice the first post...
Went online and downloaded the dutch versions to see if they were equal to the English:
dotNetFx40LP_Full_x86_x64nl.exe
dotNetFx40_Full_x86_x64nl.exe
@harry: I don't have any md-folder in my client folder....maybe due to that i don't verify my files?
Will try a new download today.