…and as far as I could find, that rounds off all the settings to do with IPv6.
It might help if you tell us where you are (very roughly - country and perhaps city), your ISP and router model. I can get you to the point of all of this working but there are rather a lot of unknowns. I can see that your router offers Dutch or English so I will guess you are from the Netherlands.
That’s right, I’m in the Netherlands, in Utrecht to be exact. My ISP is Youfone and the router model is a ZTE H369A