Enhanced Messaging not turning on

Hey all!

I purchased my Essential phone brand new from Sprint yesterday. I switched from an S7. I'm trying to use the default android messages app (what I used on my S7) and I tried to enable enhanced messaging to receive stuff via WiFi. I get horrible reception at my desk in my office, so texting over WiFi is super helpful. Well, when I go to turn on enhanced messaging in the app, It just clocks, and eventually says "Excuse the wait... messages will let you know when this step is complete." I click "Got It", then it proceeds to do nothing...

Has anyone else figured how to turn on enhanced features on this device? Sprint is my carrier.