Since I can't edit my post anymore.
The problem fixed itself after about 3 hours?
How is that a thing?
Edit"2".
https://tweakers-net.translate.goog/nieuws/221976/delta-en-caiway-klanten-hebben-problemen-met-google-diensten-door-storing.html?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en&_x_tr_pto=wapp
Still.... amazing how it was working on the phone without a vpn to the router and not with, whilst some clients were having no issues at all and others just plain refusing...