GETTING INTO MULTIPLAYER GAMES

That's very strange. If it were one game, I would guess that it's an issue with that game. But you're saying it's happening to every online MP game you try to get into? Do you get any particular messages when you get kicked out of the lobby/game? Sometimes
it will say it lost connection, or matchmaking failed etc, so I'm just wondering if you get any certain error messages when this happens?

Hey there CATATONIC CATS,

Thanks for reaching out to the Forums for advice on how to hopefully get your console back playing with others smoothly. I can totally understand how this could hinder your whole gameplay experience. I suggest trying the steps we have Xbox
One Disconnect Solution. Another quick troubleshooting step you might want to try is going to
Settings> Devices and Streaming> Blu-ray> persistent storage in the Xbox One Guide and clearing that three times. Once that has been done, go to
Settings> General> Network Settings> Advanced Settings> Alternate MAC address, clearing that and letting your console restart.

When you get the chance, give those steps a shot and let us know how that helped.

Thanks!

^^Two quotes up, Matks says," Yup".

have they fixed this problem yet?

The issue looks to be resolved for myself. Was able to join and play a Player Match with a party of 6 about 20 minutes ago.