I have a 2010 time capsule, That usually works well. the past 3 daysIt seems to buffer every video I load. It is driving me crazy. What can I do to fix this? should I buy a airport wireless system to attach to my time capsule? I have 2 laptops synced wirelessly a ps3 attached through an ethernet cord and my iPhone that hooks up to the wifi. does it buffer because it is overloaded? Please help