A few weeks ago my girlfriend and I purchased a new UMB and a new UMBP, respectively. At first, everything worked flawlessly, however her MacBook has developed an Internet connectivity issue. Symptoms: - Connects fine when first started up or restarted - Connects automatically when awaken from sleep however Internet is unavailable. We have (not in any particular order): 1) Repaired permissions 2) Rebooted and reconfigured network 3) Bought a new router 4) Cleared PRAM 5) Set Airport to connect before ethernet, bluetooth, etc. What else can we try? The problem only exists when the MB is awoken from sleep. We have to either 1) troubleshoot via the network troubleshoot button in Safari or connect and disconnect from the network via the menu bar item several times. Remember, we can connect to the network but the Internet itself is unavailable. Once we run the network troubleshooter, the Internet is restored perfectly. It never finds anything wrong and tells us the connection is working perfectly. Any help would be deeply appreciated.