Double Posting , I hate this...

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Because of this network connection, I always face to troubles. When Im trying to reapond or comment, it says "network error, try again" then I click it again, Oh... Posting successful.. Im happy.... But...... When I get the notifications and When I go those posts to check them,,,, I see there are 2 or more responds or comments from my ID.... This is really annoying. This is not really me, its my stupid connection. Please forgive me for the inconvenience friends.... Have you ever faced this problem?