I have a MacBook circa 2007. Recently changed to a fiber internet service. My other devices are connecting but the MacBook will lockup. No response to keystrokes or soft reset.
What is your network setup? You are presumably connecting your devices through a traditional WAP or wired ethernet switch/router. What mfg/model is that device? The fact that your backbone connection is fiber should be irrelevant. – JasonOct 19 '12 at 20:13