Airport turns itself off and cannot be reenabled

The airport card on my 2007 macbook pro turns itself off after a brief period of time of functioning and cannot be reenabled without a restart. In addition, my computer sometime freezes after restarting. I have had the card replaced before and recently upgrade to Mountain Lion and am still having issues.

Here are some things to try:
1. Be sure that Airport is at the top of the list in System Preferences > Network. And, be sure that your preferred network is at the top of the list in System Preferences > Network > Advanced.
2. Go Finder > Your HD > Library > Preferences > SystemConfiguration.
Move the SystemConfiguration folder to your Desktop.
Restart.
Try airport. Try your network. Try your browser.
3. Try creating a new location from System Preferences > Network and then deleting the older one.
4. Create a new admin user account and see if it works from there.
5. Do a repair install of Sno. Just install Sno over Sno as though doing an upgrade installation. Do all the networking/internet tasks at the end of the installation if possible.
Message was edited by: donv (The Ghost)

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Thank you for the link.
It's deliciously ironic that I'm typing this reply for the second time now because after composing it the first time, and failing to glance at the Airport connection icon first, I clicked "Post Message" and received "Safari cannot open the page http://discussions.apple.com/... because your computer isn't connected to the internet" and after refreshing the page lost what I had written (should have tried the back button first).
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Airport turns itself off

When I turn my computer on at home it will connect to my wireless network (Comcast through a Belkin router) for a few minutes, then all of a sudden the airport turns off. Trying to turn the airport on does nothing, and using the network assistant doesn't help (it says that the airport has failed). I can still connect to the internet using the ethernet cord from the wireless router after this has happened.
If I restart the computer it will connect wirelessly again and work fine for a few minutes, then turn off again.
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hey i had this problem where the airport fan turned itself off and would not turn back on. i rang apple and they had me go to finder, macintosh HD, Library, preferences, and then drag the folder "system config" to the desktop. leaving it there i had to restart and see if airport returned to normal, it did so i had to put that folder into the trash. and it stays connected now...hope this helps, let me know
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Hello untech,
I see that it has been awhile since you have posted with us on the HP Forums. Please let me take a moment to say "Welcome Back".
I see that you are having an issue with the printer shutting it self off and not powering back on.
By chance do you have the printer power cable connected to a power bar/strip? If so, please try connecting the printers power cable directly to a wall outlet. Here is a document that explains the Issues when Connected to an Uninterruptible Power Supply/Power Strip/Surge Protector.
The printer in the document is a LaserJet printer but this document is meant for HP products in general and only uses the LaserJet as an example.
I am also going to include a document for when The HP Printer Won't Turn On or Respond When the Power Button is Pressed.
If by chance the issue is not resolved after doing the steps outlined, I would then suggest calling HP's Technical Support to see about further options for you. If you are calling within North America, the number is 1-800-474-6836 and for all other regions, click here: click here.
Please feel free to write me back if you have any other questions.
I hope you have a great Monday.
Cheers,
Click the “Kudos Thumbs Up" at the bottom of this post to say “Thanks” for helping!
Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
W a t e r b o y 71
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Airport turns itself off and cannot be reenabled

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