As any way to contact tech department to ask them exactly how (in firmware) router check internet connection is it ok or not? Ping something resolve dns or what? Two state of wan wan orange green...

@Kevin_Z connected to wan port, dynamic, at old routers connection the same, captive portal doesn't display it overrides built in router with message check internet connection. If i write to browser...

How does router validate connection for making green led lights and no pushing build in captive portal with message validate your connection and so on ... i've using that routers for my production...