During these 2 days nothing happen just a normal day and just load up D2 press tower and then error beaver code and every time also not only once it happen many time while i load into the tower. The game server is located at Singapore and i'm connected to it. What i done to mitigate my issue I call my isp he say it was fine i also ask him to reset my ip address to get a new 1 , even i done my part to port forward on my router and still having the beaver error.