Sudden WIFI Issues with four Apple devices

About a week ago four of my households Apple devices just stopped connecting to wifi all at once. Two of our laptops say they are on wifi in the top corner but when you go to a website it says there is no connection. Both of our iPhones say they are connected and to wifi in the settings but the top corner says 5G. All four devices are stuck at a 169. IP address.

It’s not our wifi we called our service provider and they checked everything out and it’s working as it should. This wifi connects to all other devices in the house including an IPad.

Feels like we have tried everything to fix this issue and nothing works. Here’s what we have tried:

-turning wifi on/off

-forgetting network to reconnect

-restarting devices/router

-resetting network settings multiple times

-none of our devices have a VPN on them

-Configuring DNS to a public 8.8.8.8 network

-Renewing the DHCP licenses

Any ideas how to fix? Or even what could be happening? Our only thought is maybe the 17.4.1 update broke some kind of connection?