I just bought a brand new graphics card Nvidia GTX760 and NOW this just started to happen to me! Yesterday I got kicked from the game 5 times because of this. I ran Fraps to see my FPS and it was at 50-60FPS and I am using medium settings!
I have a very good PC, fully loaded and my Internet connection is 56mps! All this talk blaming the hardware is just BS, the game is crap. I'm trying so hard to like CoH2 despite its COHO look and feel, but when I get dropped all the time what's the point? Throwing more hardware is not the solution, they need to fix this game, its been over a year now.
Saw this post:
http://steamcommunity.com/app/231430/discussions/0/558754259622551147/
"Other Issues:
Game works fine at the beginning of a match, but later on, there starts to be an ever increasing amount of command lag:
This is a framerate/performance issue on your PC. With the battle servers, we don’t need to slow the entire game down if one player has a low framerate, instead that player will end up simulating behind other players. The fix to this issue is to turn down your graphics settings, and be sure your PC meets the minimum requirements to run the game."
I'm still not buying it because it once again blames graphic settings and hardware. My hardware is at higher then recommended and graphic settings at medium.
Also saw this, but haven't tied it yet:
http://www.crashwiki.com/top-8-fixes-coh-2-western-front-armies-crash-desktop-dll-error-compatibility-crash-unable-connect-lag-poor-fps/