I'm experiencing an Xfinity service outage as I type this. I don't have internet or TV. I noticed on my iPhone 6s Plus and iPad Air 2 (both running 10.1.1), that they both show the wifi icon as full strength. My wife's iPhone and iPad 3 running 10.1.1 is the same. I know for sure I don't have internet at this moment, so shouldn't my phone automatically switch to cellular and turn off the wifi? Shouldn't the iPad wifi icon stop showing? I have to manually turn off wifi to get on LTE on my phone. The wifi icon switching off used to happen with other iOS's when there wasn't wifi. Anyone experienced this? Thoughts?