Pokemon Go won't reload without WiFi [duplicate]

Are you restricting background data? I was having this problem. A small number of times I could load from data but mostly not. What puzzled me was that my daughter, her tablet tethered from my phone could load and reload to her heart's content. I was restricting background data as a carryover from my days using an old expensive data plan. After removing the backdround data restriction I've not had the problem. Once the game loads yiu can restrict background data again if necessary.

It's anecdotal, with an extremely small sample size, but it's what seems to have worked for me.

I was having this problem and I went to settings then data usage on my phone. I opened Android os, Google play store, and Google services and set the restrict app background data to off and after that mine loads fine.