After have 3 games with total of 3 hours above, my Dota just crashes to offline mode. I'm not sure if the problem is with the Hours or the Number of Games.
Problems occured when after 3 games or 2 games + watching 1 live match, exiting back to title screen welcomes me with either an OFFLINE MODE or a system crash.
Another crash in dota also occurs when while I was watching a live match, I'd click the "human icon" beside the character level to watch the game in a WoW manner. Then the game would crash when I attempt to move the camera or even let the view stay for a few seconds.
Restarting steam and dota doesn't solve the job. I can't get steam to online. I noticed after this that playing Dragon Nest is affected. I can reach the title screen and input credentials, but pressing connect gives a silent response.
My computer is Dell Inspiron 7566 4GB RAM GTX960.