Why can't I send picture text when wifi is turned on? S7

[AC Question]

My wife and I both got new Galaxy S7s. Neither phone will send picture texts while the wifi is turned on. We are not turning our data off and the texts will send as soon as we turn off the wifi. This is kind of annoying. How can we fix this issue?

 

[B. Diddy]

Welcome to Android Central! Go to Settings>Wi-fi, tap More>Advanced, and see if there's a Smart Network Switch option. If so, try toggling it to whatever it's not currently set to, and see if that helps.