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Helpful answers
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Jun 24, 2015 2:28 PM in response to baldvin13by Baby Boomer (USofA),★HelpfulTry the basics first:
Change your router channel number. Most times this works & is all you have to do.
Disconnect & reconnect your modem. unplug it for about 10 seconds. Plug it back in. Do the same for Apple’s routers. Wait for everything to reboot.
System Preferences>Network
Click the Assist Me button.
In the next window that pops up, click the Diagnostic button & do the necessary. Report back the results.
Research Knowledge Base for network problems that pertain to the OS that is currently installed on your computer. See these basic networking KB Articles: http://support.apple.com/kb/HT1401 AirPort troubleshooting guide
http://support.apple.com/kb/HT4628 Wi-Fi: How to troubleshoot Wi-Fi connectivity
http://support.apple.com/kb/HT2712 Using network locations in Mac OS X
Manually provided DNS server addresses are higher priority than DHCP's
http://support.apple.com/kb/HT1714 Solutions for connecting to the Internet, setting up a small network, and troubleshooting
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What to do when you can't connect to the Internet
Also, run the Airport Utility app which is located inside the Utilities folder.
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If using a Linksys router, contact LinkSys Customer Support and/or post in their forums.
If using Apple's Airport, please re-post over in one of the AirPort Forums.
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Jun 24, 2015 2:31 PM in response to baldvin13by Linc Davis,★HelpfulPlease answer as many of the following questions as you can. You may already have answered some of them; in that case, there's no need to repeat the answers.
- Restart the router and the broadband device, if they're separate. Any change?
- Are you connected to Ethernet as well as Wi-Fi? If so, disconnect the Ethernet cable or adapter and test.
- If possible, connect to the router with an Ethernet cable and turn off Wi-Fi. Any difference?
- Are any other devices on the network, and if so, are they the same?
- If you can connect to more than one network, are they all the same?
- Are all network applications affected, or only some? If only some, which ones?
- Is networking always the same, or is the problem intermittent?
- Disconnect all other devices from the network. Any change?
- If you're running a MacBook with the lid closed, open the lid. Any difference?
- Start up in safe mode and test. Any difference?
- Start up in Recovery mode. From the OS X Utilities screen, select Get Help Online. A clean copy of Safari will launch. No plugins, such as Flash, will be available. Any difference?
- If possible, turn off Bluetooth and disconnect any USB 3 devices. Any difference?
