Originally posted by Mulberry: I had this issue as well, and it turned out it was because I was accidentally pressing my push to talk button (was bound to T), which for some reason caused my game to freeze for a second or two, every time it's pressed. I bound it to some key I'll never go near and haven't had any issues with freezing like that since.
Sorry if this isn't what's causing your issues, but I figured I'd just say what was causing my own problems for a bit.
could you offer us the log which represents the push-to-talk causing freeze issue?
For log:
Make your way to game installation folder/logfile. Here you can find all logs with the timestamps, you then can remember when the issue happened and send all possible logs to me.