Everytime after I joined a mulitiplayer server, the game crashes every 20 mins to 1hour. It never lasted longer than 1hr 30mins.
I dont have any mod installed

I have done the fallowing suggestions,
-Turn down resolution
-Try 32bit platform
-Update the graphics card drivers to a newer version.
-Check the temperature of your GPUs and CPUs.
-Verify the integrity of the game cache using Steam.
-Re-install DirectX.
-Uninstall the Visual C++ 2013 Redistributable package (x86 version), restart your computer and install the package again (do not use the Repair function).
-Run a Windows System File Check tool to repair corrupted system files.
-Remove c:/user/document/ arma 3 and AppData
-Try switching to and playing on the profiling or development game branch.

And the problem still continue.