Game continues to crash / freezes

Hi, HOTS keeps crashing. Some times it just freezes for varies amounts of time, other times it crashed in total (error code: 87E9B737-3010-4747-3F39-A40C2DDE8760). I have tried reinstalling the game several times, it works fine with the first match, then its back to same issues. I have tried to reset router, flushed and reset the networkcard, as well as reinstalled it. Reinstalled battlenet, went over anti virus program, changed setting, made own rules for the game.
I have read similar cases on this site, done everything you have suggested in these cases, and still nothing helps.