Wifi connects but has an exclamation point and fails to work??? HELP PLEASE...

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Level 1

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Wifi connects but has an exclamation point and fails to work??? HELP PLEASE...

I go to a lot of different places and connect to friend's and family's wifi when needed. I type in the password they provide me with and it works like a charm. Every time I visit my one friends house, it accepts the password and says it connects but fails to work. An exclamation point is displayed on the wifi bars at the top and when I click it, it says the internet connection failed. It only does it at her house..and when I had an apple lap top (MacBook Air) it did the same thing at her house and oddly enough, McDonalds as well. I am using a Mac Mini as if now and I am tired of stealing her landline to connect to the internet at her house. (Her brother uses the landline for his xBox and it turns into a big deal lol) I tried going into the internet settings to fix the issue, but no luck. So if anyone knows how to solve this, please help me out. I'd appreciate it. Thanks 🙂

Mac mini, Mac OS X (10.7.4)

Posted on Jul 9, 2012 12:01 AM

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Answer 1

Jul 9, 2012 8:38 AM in response to KittyAnn777

What kind of network security does it have, WEP or WPA? If WEP, recommend updating to WPA.

First, turn Wi-Fi OFF. Open Keychain Access Utility (found Applications/Utilities), find and delete all Airport Network Passwords related to that specific network (make sure you know the password).

Next, open your Finder window. Click the Go from the menu bar, hold the Option key and select the Library from the Go list. Follow path, /Library/Preferences/ and rename SystemConfiguration to SystemConfiguration.old . Enter your administrator password.

Then, from the  choose Restart. After your unit reboots, turn Wi-Fi ON and select the preferred network.

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Answer 2

HACKINT0SH

Level 5

5,804 points

Jul 9, 2012 11:22 PM in response to jakeloveslucy

Woah... there is no SystemConfig folder in the user library. They need to go to the ROOT library instead if they want to pull the System Config folder.

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Answer 3

Jul 9, 2012 11:38 PM in response to HACKINT0SH

HACKINT0SH wrote:

Woah... there is no SystemConfig folder in the user library. They need to go to the ROOT library instead if they want to pull the System Config folder.

Thank you for the correction.

"Next, open your Finder window. Click the Go from the menu bar, and choose Computer from the Go list. Follow path, /Library/Preferences/ and rename SystemConfiguration to SystemConfiguration.old . Enter your administrator password. Restart your computer. After your unit reboots, turn Wi-Fi ON and select the preferred network."

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