On the PC, I have recently started receiving "Server has closed connection" and dropping my LAN Co-op game every 5-10 minutes. We did not have this problem in Nov-Dec, but started up again recently and had our Co-op drop about 10 times. I am currently on Version 1.4.5.
Seems like a decent amount of people are reporting this problem on steam forums. https://steamcommunity.com/app/413150/discussions/0/3540329659708395227/ I am also having this issue with a friend. Hope it gets resolved soon!
Started happening to my wife and I last night. Made it unplayable unfortunately. Hope they address this soon.
