Multiplayer consistently loosing connection to host?

[Diddley Squat Inc]

This is for Farm Sim 22 PC, thru steam.

Im having constant issues for the past few months. When playing in my normal multiplayer farm, me and who ever else connects to the host, will loose connection / time out after about 15-20 minutes. Like clock work. Any ideas? We can re join, and it all works fine, for around 15-20 minutes, until it hard lags, and pops us out again. Not the host though.