Xbox Series X signs out of profile when controller disconnects

The best way that I found, for right now, is to plug in the type C charging cable before removing the batteries to keep the power running through the controller during the swap. It is an extra step, but at least I am able to stay logged in and in the game
I am playing.

Connecting the controller with a USB cable doesn't work,

Controller still disconnects even with a USB cable connected,

I have the same issue with Series X using mouse and keyboard for Call of Duty Vanguard.

I played during the beta and there was no problems with the controller disconnecting but as soon as the game released, the controller disconnects,

I've tried a Xbox One controller Series X controller, with batteries and a USB cable, and the controllers still disconnects.

Make 1 of the Xboxes the "Home Xbox". When done make sure privacy and sharing preferences are set on the "Home Xbox" to share. After that all the games on the "Home Xbox" are accessible by any profile added to that "Home Xbox. The other (non "Home Xbox) has to have the game purchased under that 2nd Xboxes main profile or purchased as a gift from any profile and sent to a chosen profile to be downloaded when that profile signs onto their Xbox. I have an Xbox One X in my living room controlled by my 2nd account profile. I have a Series X in my game room "Home Xbox" controlled by my 1st profile. Example; I log on the Series X with that main profile and buy/download Division 2 with all expansions and passes. I then log on the One X with my 2nd profile (main for that One X) and buy/download Division 2 with out the expansion and passes. So now a family member adds their profile to the One X, if they own the Division 2 they can play it and as much of the content that I have purchased. To play the full version on the One X someone has to buy it for that console, However anyone else that logs onto the One X with their profile that doesn't own any of Division 2 content can't play it at all. They can launch it but it will direct them to the store. Now adding Ultimate Game Pass to the One X allows profiles to download and play any games available through game pass. Remember my Series X will allow any profile added and signed onto can play any games and use the Ultimate Game Pass to download and play from my Series X. One X has limitations for profiles due to that profile owners games owned and which games are in the One X. Confusing ........ ?

When you get disconnected from the game, does it say, "your connection to xbox live has been lost"? If it does, that is an issue with your profile in addition to your NAT issue, for that you just have to download your profile. To do that you press
the guide button, if you're signed into a profile, press X to sign out. The select download profile.

Ive had the baseline controllers for years and keep holding back from pulling the trigger (get it?) for an elite controller. When the series 2 came out, I was ready to go get one, but the fervor died off with reports of disconnecting.

Right now I’m still waiting to get an elite. I plan on it sometime this year, maybe with the Series X