Hi There

For several months now we have a recurring issue where our Wifi connection states "No internet. Secured". This issue occurs across multiple devices in our house not all at the same time. 

This issue has persisted despite a change in internet service provider, a new modem, a new router, factory resets of all. 
 

We're at our wits end trying to figure out a solution to this as most of the time it's not working. 

Our internet provider can always see we have internet from their end. Direct ethernet connection seems to work but is obviously not a feasible long term solution. 
 

Any other ideas of what the main issue could be and how we can resolve it?
 

Thanks in advance