I cannot open my Gmail account? Help!

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I cannot open my Gmail account in my computer. I have already tried opening it in IE, Firefox and Google Chrome but each attempt was unsuccessful. It gives me this notification that the connection was interrupted (Firefox), SSL connection error (Chrome), and IE says that it cannot open the webpage. I can access it though from my husband's Macbook but I want to access it from my own computer. Can anyone tell me what's wrong and how do I solve it?