Same here. It just started a few days ago (I've had lollipop since it was released). Everytime I've seen the message, I have just unlocked the phone (I just have swipe unlock).
My phone reset (or seemed to) on me last night. The only thing I was actively doing was running a stop watch to time something. The only thing I noticed was the yellow Sprint Spark loading screen and then it was back to the home screen. I opened the stop watch and it was stuck at 0. I hit reset for the stop watch and it was back to normal.
I did a reset after that, but it was just weird.
I just priced out the Unlimited Family plan online and it's saying $122 a month. That's for unlimited data, talk and text (with phone insurance). No tethering though.
The last time I went in a Sprint store for ME was maybe 5 yrs ago, to buy a phone. I've been a Sprint customer for over 10 yrs. I RARELY go into a Sprint store. I usually buy my phones from a 3rd party (mainly Best Buy, Amazon).
That could also increase our available of B41 coverage. Say if they sell it to VZW and they deploy it to all the places they have their LTE coverage currently. Then Sprint signs a B41 roaming agreement with VZW. Or the roaming agreement could be part of the deal.