This problem has been monthes to me.
In 2.5 I can keep play single play for hours without any problem, but in most of servers the game will crash after 10 - 20 minius entering the game. As far as I know there is only a small amount of servers cost no crash.
While in 2.7 I still can play singleplayer but when in multiplay all server will cost crash randomly, Sometime is an hours sometime just a few miniuts. For the most of the crash for 2.7 happens when after landing and rearming and when I use F2 to see outher player. I dont think is a hardware related problem, I have a I7 6850K 32G DDR4 RAM(Running on 2133MHz because I have a old mother board), and a ROG 2080TI and DCS is runing in a brand new SSD I just purchase for 2monthes.
Log file for 2.5:https://github.com/theFSO/server_news/blob/master/2.5Logs.rar
Log file for 2.7:https://github.com/theFSO/server_news/blob/master/2.7Logs.rar