Getting the weird join lobby error in the middle of a match

'Could not connect to lobby or Could not find the game'

I have no idea what could be the reason. I have a stable connection with low ping, didn't have any network issues so far other than AoE4. But 2 of my games ruined because of this error coming out of nowhere. I could not find a solution and wanted to ask. One of the games was a team game and we were grinding hard for an hour just to see this and boom. Gone.