Game Closes Radomly

[Cousin Vladek]

I start the game just fine join any server lasts about 1-30 min then game closes without any errors or anything just completely random (i just reinstalled the game like yesterday no mods besides wire)

AMD Phenom II x4 940 3 GHz black eddition
8 Gigs of ram
64 bit system
and a Geforce GTX 660

if any one could help out that would be great !