Disconnected before the start of every third game

For some reason, before every third online game I play in the multiplayer, whether it be forge, custom games, arena or wars one, I get disconnected from it before the start after all the players have been found and the server/game is loading with the error message “You have been disconnected from tHe local network” and then returned to the Halo 5 home screen. I have never disconnected during the middle of a game, but the pattern of disconnecting before every third game starts has been consistent since I started playimg the game yesterday. Regarding my network, I have a very good connection and have never had any major problems with lag/disconnection before whilst playing other games, although I was playing them on the 360 as I only got my XB1 yeserday at the same time as I got Halo 5: Guardians. The problem is really annoying as if I am in a fire team my friends are unable to leave as the game is already loading in, and so I have to wait for them to finish. I have seen a few other articles on this problem but not many people seem to have it. I have a Netgear router and my internet provider is Plusnet, and the connection from my Xbox One to the Internet is wired. I would appreciate it if anyone had a solution/fix which would stop this problem/possible glitch.