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Airpass – Easily overcome WiFi time limits
Overcome free wifi time limits with a status bar Mac app.
Wifi networks collect a reference to your computer (called MAC address) when you login. That way, when you try to login again, even with different credentials, they detect that it is the same device and do not allow you to continue using it. When you try to login again it won't trigger the error message and you're free to use it.
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