Conencted, but no internet connection on any device?

[Lsumme]

My internet is saying connected but no internet on any device in my home, tried restarting the router a couple of times and restarting all devices, also tried connecting via ethernet cable, nothing working, tried troubleshooter and it cabt figure out what the problem is either, checked on sky broadband checker which says my broadband and WiFi is working and hasnt detected any issues?