Welcome to TPG Community!
We are aware of the issue that our customers have been experiencing in connecting to battle.net/blizzard online games at night time. However, we can't identify the root cause of the issue as of the moment as we need more evidence.
Since it only occurs at night time, we need your help to run some test for us to analyze this further. Can you please run a tracert and continuous ping test to the battle.net server once you've experienced it tonight? This will help our network engineers investigation of the issue. You may send it via PM to me.
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