Macbook Pro Airport Card looses connection if not running a continuous network ping

Okay, I have a crazy issue going on.
Since I upgraded to Mountain Lion, soon after my Airport Card started disconnecting from any network and I would have to turn it off/on to get it working again and then it would die about 45 seconds later. This repeats over and over. I have found that if I run a continuous ping to something else on the network it will stay live and not disconnect. So, my Airport Card will stay connected if I run a continuous ping, but without it it will die every time. What the heck is going on? Did Mountain Lion put something in the firmware on my Airport card that is messing it up? I have done fresh installs many times and downgraded to lion and snow lepard and still the same issue. Is my Wifi Nic just dead or is this some other issues like the antenna? I have a new Wifi Nic in route from China but I want to make sure I finish running through all other possibilities before it arrives.
Thank you
Kevin Monette

I'm sure you meant to post in the appropriate forum. This area is for MBP (Original). You want MacBook Pro (Late 2008 and Early 2009) here:
http://discussions.apple.com/category.jspa?categoryID=190
1. Try typing a $ before your password, so $password.
2. Proximity to your router without walls in the way is helpful for proper signal. Proper orientation of your router is also helpful.

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Hello to everyone,
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I have a Macbook Pro 2.16GHz Core Duo that has had problems with Airport connectivity since I got it. I can never get anyone to help me with it because it will never show the problem at the Apple Store.
One place that I have to work at has been very, very frustrating.
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It will connect to other networks with and without
WEP. It will connect to other networks that use
WPA.
There are many networks, though, that give me the
"There was an error joining the network.", and I
don't know why.
I cannot enter a $. As I stated previously, the Join
Network dialog will not allow me to enter that
character when it is set to WEP 40/128 bit hex.
Also, as I have already said, I cannot change the
network to WPA. I understand the benefits of WPA
over WEP, but I am not the network administrator.
They will NOT change their settings. I know the
network works with Windows on my computer. What is
it about Mac OS that is preventing this?
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http://support.apple.com/kb/ht3964
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com.apple.systempreferences.plist
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drag the useless file on the desktop to the trash.

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This has been a problem I’ve been troubleshooting for the last month. I’m new to the Mac family and have loved my experience up until this point. I was under the impression that mac’s are supposed to be so user friendly that even your grandmother could use one with out having any technical knowledge. I mean I shouldn’t have to be deleting drivers or reformat my mac because of an OS update glitch? (That’s what the guy at the Genius Bar told me to do.) What I refused to succumb to was that I’m really good with computers. I get at least a phone call every other week from someone asking me for tech support. So I’d like to think that nothing I’ve done to the system would have caused this anomaly.
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1.) Changed my router to use G Wireless Only. (I’m assuming this removed any unnecessary frequencies to allow G to broadcast stronger?)
2.) Did a scan on the other networks in my area to find out what channel everyone else was broadcasting on. Copy and past the text below into a terminal window.
sudo ln -s /System/Library/PrivateFrameworks/Apple80211.framework/Versions/Current/Resourc es/airport /usr/sbin/airport
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4.) Boot your Mac into safe mode by holding down the shift key while booting.
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11.) Click on the settings sprocket next to the + and – and click on Set Service Order…
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13.) Click on Advanced under Network.
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16.) Click on the drop down for Configure IPv6 and change it to Off.
17.) Next click on the DNS tab at the top.
18.) Click the + to add a DNS Record.
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19.) Add both records to the DNS and click Ok.
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Let me know if this helps or if you have any questions.
Best of luck.
Message was edited by: erockdabass
Message was edited by: erockdabass

I have been having the same issue for the last two weeks. No real indication as to why it ever began other than I had turned off my router and Airport Extreme Base Station off for a weekend while I was away from my place.
iPad, iPhone, iPod Touch, all have no issues at all with my Airport Extreme Base Station. Can stay connected throughout my living room, bathroom, bedroom, no issues whatsoever.
My 5 month old MacBook Pro 2.66 GHz Core i7 Airport is sometimes perfect, able to connect, DHCP, and browse without issue. Then, for no reason, I won't be able to join my wireless network, or when I can join, I can't pick up an IP address. And then it will connect, pick up and IP, and then it won't browse. No real rhyme or reason to when this will happen, or when it works.
I thought that it was an issue with my MacBook Pro, but then my sister visited with her brand new MacBook Pro 2.26 Intel Core 2 Duo, and while a month ago she was able to connect, DHCP, and browse without issue, this weekend she had all of the same issues I was having.
My XBOX 360 and MacBook Pro have absolutely no issues with the wired connection. Only my WAN seems to have this issue.
Did you ever find anything more to this?

MacBook Pro can't actually connect to Wi-Fi with Self-Assigned IP

Hi there
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During this time I mostly use my other MacBook Pro 13 inch Retina. Until today, this problem happens on my 13 Retina mac for the first time, and the 15 Pro again as well. A few days ago, my 15 Pro started working again, and today they just gone wrong together at the same time.
I just found out that my 15 pro can still work if connected to ethernet, but I can't just work in the living room, where the router is. And as you know Retina doesn't support Ethernet.
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Macbook Pro Airport Card looses connection if not running a continuous network ping

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