DHCP timeouts? Other network problems? Try new locations.
By default the network settings in OS X are set up to dynamically adjust to different network environments. All ports on the system are enabled, so when activated either by plugging in an Ethernet cable or turning on the Wi-Fi receiver, the system will configure an available network connection through these ports. Sometimes, however, network configurations may hang during this initial setup. This might happen when a port is enabled, or when the system refreshes the configuration after waking from sleep or booting up.
If this happens, one of the easiest approaches is to create a new network location for … Read more