How do I keep the data roaming triangle from constantly popping up on my android phone

[AC Question]

I've got my data roaming turned off, but I keep getting the data roaming triangle constantly popping up on my android phone every time I have to either, power off my phone and turn it back on or when I have to restart my phone. I'm tired of it constantly popping up and I don't know how to keep it from constantly popping up???