Make sure that you take a look at the security settings such as the wireless key and inspect the logs to see if there are any clues about potential issues. For example, if there are dozens of WiFi hotspots in the area where you live, you might be subject to wireless interference issues if someone else has configured their router to use the same wireless channel — try changing it from the default channel to something different.
How To Fix WiFi Connection Problems in Mac OS X Lion
You can also change the security settings for example to use WPA or WPA2 or remove them completely, to see if that makes a difference. If you can successfully connect another computer, iPhone or tablet for example, then it points to an issue with your Mac rather than the network kit or Internet connection. Also, you should of course try connecting your Mac to another wireless network to see whether the problem persists. Follow the procedure below:. Locate the Command, Option, P and R keys. Press and hold down the Command , Option , P and R keys before the grey screen appears.
Hold down the keys until the computer restarts and you hear the startup sound for the second time. The PRAM should now be reset to the default values. Try connecting to the Internet by WiFi again when your computer has fully rebooted. Another approach is to reset the main SMC chip System Management Controller , which may resolve issues related to fans, lights, video and power.
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You can try deleting some of the Internet preference. Sometimes, corrupted preference files can be responsible for things not working correctly.
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Most problems with your Mac should be fixable by the technicians there, but there are of course lots of resources on the Internet that you can also use. I've been passionate about Apple ever since I bought my first iPod followed by a white polycarbonate MacBook in Roland's Google Profile. This site uses Akismet to reduce spam. Learn how your comment data is processed. Thanks a lot for this post! I updated my mac a few days ago and have been having wifi problems since.
Dude,you saved my life tonight..
OS X Mountain Lion and later
Thanks, it seems that you have a very large knowledge on this subject. We can see the router on airport, but it seem that it would not aloud us to get to server. Any ideas? Handy thanks! Always-on Connect-on demand being set to Connect on demand instead of always on.
Thank you! Posted on Oct 29, 6: Oct 29, 7: That'll get rid of your existing configuration. Then click on the 'plus' button and from the drop-down menu select Wi-Fi to set up a new connection. Page content loaded.
Cheers Paul, yer im using wpa2 and have tried the minus technique its really starnge nothing eles ie iphone, ipad effects the router like the imac does Oct 29, 8: However, I'm sure there are plenty of users still using WEP, unknowingly leaving themselves more vulnerable. Oct 29, Note that any changes you make on your Mac will take time to propagate to other Macs, and to iOS devices.
It's a good idea to go through these networks from time to time. You may have connected to a network when you were traveling and not want to automatically connect to it again. Clearing out these networks will also prevent your Mac from automatically connecting to networks masquerading as legitimate, since the only identifying information for a Wi-Fi network is its SSID or the name you see and anyone can use the same network name, potentially leading you to connect to an insecure network.
Thank you. Good topic. I just discovered this, and the related topic looks good too prevent connecting to WiFi Networks. I know from experience a few iOSs ago circa , maybe? Could someone kindly confirm that this is no longer the case? Follow IntegoSecurity. The Mac Security Blog. Search for: