So, sometimes the only solution to an Internet outage is to wait for it to be fixed. And on a larger scale, accidental damage to a major fiber optic cable can (and occasionally does) wipe out Internet access to a large region. Because of the distributed nature of the Internet, an equipment failure at an ISP can affect more than just that ISP’s customers. Getting back onlineĮven after following all these steps, success isn’t guaranteed, because some outages could be beyond your control. If you suspect a DNS problem is preventing you from connecting to the Internet, try entering the IP addresses for the OpenDNS servers, as shown here.
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(These addresses point to OpenDNS, a free DNS service that’s often more reliable than the default servers your ISP uses.) Click OK and then click Apply. Then, regardless of whether there are already addresses there in gray, click the plus-sign (+) button and enter 208.67.222.220 repeat with 208.67.222.222. If those addresses are enabled (black, as opposed to gray), select each one in turn and click the minus-sign (-) button. In the DNS Servers field, you should see one or more IP addresses. To fix that problem, open the Network pane of System Preferences and select your network connection in the list on the left. Re: SOLVED WiFi: Connected to SSID eduroam, but no internet connection For what its worth, I am encountering the exact same issue on a Broadcom BCM4313 802. Sometimes that’s the only way to clear wacky errors that prevent Wi-Fi from connecting. If that still doesn’t work, restart your Mac. If the menu’s icon has an exclamation point, indicating that it can’t successfully connect to any network, try choosing Turn Wi-Fi Off from the menu, waiting about 30 seconds, and then choosing Turn Wi-Fi On. Macs have been known to hop onto less-desirable networks at inconvenient times. If your Mac connects to the Internet via Wi-Fi, check the Wi-Fi menu (at the top right of your screen) to make sure you’re connected to the network you intend to be. Nudge Wi-Fi back to life Check your Wi-Fi menu to make sure you haven’t gotten onto the wrong network. The Network Diagnostics utility built into OS X can track down, and sometimes repair, network connection problems. Sometimes the utility can repair problems itself when it can’t, it usually provides more detailed information about the nature of the problem and offers suggestions for solving it.
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The Network Diagnostics utility will guide you through a series of questions and tests, ranging from checking your ethernet or Wi-Fi connection to network configuration and DNS servers.
Click Assist me, and then click Diagnostics.) To do this, choose Apple menu > System Preferences and click Network. (If you don’t see a button, you can launch Network Diagnostics manually. This is OS X’s way of offering to help debug your connection problem, and I suggest accepting that help. Certain types of network problems may cause your browser to display a Network Diagnostics button.