Randomly getting signed out of my Microsoft account.

Randomly getting signed out of my Microsoft account and I half to link again with the code. My ges is that when I am in a game and turn off my Switch and and I turn it back on it says "A communication error has accord Please try again later." Which is normal then when i leave the game I am playing and sigh back in to my Nintendo network and Microsoft account I am sighed in but for some some reason at rare time when that error happens it says that I need to go to "Sing in with your free Microsoft account .... https://aka.ms/remoteconnect And enter this code: ~~~~~~~" I have linked my purchases to this account because I can close the game play a different game and I am still signed in.This has been happening multiple times but i thought this was because i forgot to link my purchases. So I very confused why this is happening to me .