NASA astronaut Bob Behnken:

“A timeline application on my tablet, uh, gives me a error message that says Safari cannot open the page, and then it’s got a HTML address because your iPad is not connected to the internet,” Behnken reported. “Can you confirm that Wi-Fi is off and AirPlane Mode is on,” asked Menon. Then the NASA astronaut improvised with a go-to troubleshooting step.

Follow the headline link to Zac Hall’s writeup. Scroll about halfway down to watch this all unfold in the embedded video (jump to about 4h16m in).