If Wi-Fi connection drops internet, can device failover to network connection?

Question

Once in awhile the internet will drop on the network that my phone is connected to via Wi-Fi. It's pretty rare, but in instances when it happens, my phone remains connected to the network but won't receive notifications. I won't know that it's not connected unless I'm intentionally attempting to do something that requires internet access at which point I can just disable Wi-Fi.

I imagine that my phone should be able to figure out it no longer has internet access even if it's connected to a network. Is there a way to have it failover to the provider's 4G/LTE connection when this happens?

My device is a Galaxy S6 Edge+ running Android 5.1.1

Answer 1

In the Wi-Fi settings, there's a feature called "Smart Network Switch" which is described as:

If Smart network swich is on, your device will be connected to a mobile network automatically when the Wi-Fi connection is unstable.

So I had this off, which I assume is by default on my phone. Turning it on I assume resolves the issue.