My Downloading programs do not work.

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My utorrent, limewire, frostwire, even my bittorrent are not able to download anything. Whenever i run my limewire, it just keeps connecting and never connects. I checked my firewall settings and change it and it still isn't connecting. I called my ISP and they turned off my firewall and still no success. Can anyone help me with this? I really need help. Your opinion will be greatly appreciated. bye.