No AirPort card installed °_° (wifi crash)

I've got a big problem with my airport card.

I've got a Mac Book Pro 17" 2.5 GHz Intel Core 2 Duo (Model Number: A1261) of 2008. My airport card worked very well till one day that I lost my connection unexpectedly. The only one message is: "Airport: Off" and "Turn Airport On" but although I try to turn it on the airport stays off. I've changed the card, thinking that was the problem, but isn't it. Now my Airpor work well at Mac startup and after a random time she goes off. When she's off the only way I can rekindle it is to restart the Mac.

I thought it can be a software problem and I've format my Mac several times with no results. The problem still the same.

Searching through internet I've found that there is a little card under the Airport card that can be the problem. With iFixit I've found the part and the guide to how to change it but before spending $100 I thought I'd ask here if it really can be the problem or not.

Do you have any ideas?

PS:

When the connection drops is always the same thing, If i click at the Wifi connection icon the only thing it said to me is: "No AirPort card installed". Isn't never a sleep problem and for the software is the same thing, isn't the same app running, sometimes i was running mail and sometimes only safari or OS updates.

I was thinking at the temperature problem too cause, sometimes, when i was using the ac/dc connection it seams to crash a little quickier than normal but it can be only my impression.

Answered! View the answer I have this problem too

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Wow, that's got to be a frustrating one. Do you know for a fact that your replacement Airport card is a known-good one? I ask because many eBay sellers sell parts without testing them, even though they may state "tested". Unfortunately many sellers just figure it's worth saving the time required to thoroughly test everything, and put up with a return every once in a while. Probably one in three spare parts I've bought on eBay has been bad.

I don't think it's the Airport cables, because if they were bad it shouldn't cause the Airport to not show installed at all. And you've wiped the OS, so you know it's not that. It all points to the Airport card itself, or possibly the other card underneath (I don't personally have experience with that one).

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If I have this correct the card that the airport plugs into is an I/O card, I think it has all the external ports on it including the magsafe (ties in with may crash faster when on mains). Therefore the hardware chain is airport card into I/O card into logic board. Before spending anymore money I would try the following:

-Reset PRAM - power on and then hold command-option-P-R wait until you have heard the boot chime a couple of times, it would also do not harm to reset the SMC pop battery out and unplug from mains and then hold power button down for 10 seconds, I am not sure if this ties in with airport or not but as magsafe and airport card are on the same board I am guessing.

-Retest to see if problem still present.

-Reinstall OS and apply all updates, at this point I would not install any other apps, not clear from above if you did or not.

-Retest.

-Next I would open up the unit and disconnect and reconnect all the cables relating to the hardware, so that would be the the airport card into the slot and the connector between the I/O board and the logic board. I also get a can of compressed air and blow all connectors just to be on safe side.

-put it all back together and you guessed, retest.

If you suspect heat download a monitor app to see if it shows the machine getting warm, I like iStat for this sort of thing. The other thing is to try and note times when you start and times of failure to see if it is the same length or varying. It will help with knowing if you have fixed it.

If none of the above work replace hardware, starting with airport card (which as long as it was from a reputable source should be OK so not really the next thing as already done), so then the I/O board, if that does not work you are looking at a logic board which is expensive.

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I had exactly the same problem as stated above. Also tried the reset steps without success. But I have possible cause and a solution.

I opened up my MacBook Pro 17 and started it up with the keyboard lifted off. While pinging in a terminal window I could see that the connection was dropped when I applied slight pressure with my fingertip on the airport card. The airport card also disappeared from my system so I had produced the same fault as I experienced before.

When doing this I could also hear some electrical squeaking noises. I disconnected the antennas, unscrewed and reseated the airport card. (The yellow tape is difficult to remove, I cut it in half on the spot to be able to reseat the card)

When examining the keyboard I could see that it had a slight bend in it downwards toward the motherboard and that was probably causing me to apply pressure on the airport card when I rested my hands on the keyboard to type, or, sometimes even by itself.

When putting the keyboard back on, I made a slight bend in it backwards especially around the area of the airport card to get some more space between there.

It is now running without any problems, and I make sure not to lift the computer with only the one hand on the airport card side.

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My wifi stopped working. Just keeps saying turn wifi on, but it won't turn on. One thing you said interested me. Just before this happened, I was about to set my computer down, and my sister moved something and asked me to set it in a different place which caused me to hold it in one hand longer than usual. I rarely hold it in one hand. Never really thought about it. Maybe I pressed down on something when I did that? It was working before that, and I had put it to sleep. When I opened it at her house, I couldn't connect, and the wifi signal was blank. No wifi since then. Any suggestions?

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for alexank69:

You're right, the airport is plugged into I/O card. I've already done all things you said: I've reseted the PRAM, reinstalled the OS many and many times and also tried new Snow Leopard OS that I'm still using, also cleaned with compressed air and disconnected and reconnected the airport card and the I/O card too. Now I'm trying new airport update downloaded two days ago and testing if the problem persist. I've also installed iStat to monitor the airport temperature.

There are no special conditions for the airport crash, the length of time is varies each time and the program I'm using when it goes down is different every time.

I've already replaced the airport card and the problem persist. With the first airport card, the mac was fine, maybe till I've done an upgrade, and then the airport stopped working, so I've decided to replace it and with the new card will have the problems described above.

for rdklincorporated:

When I bought the new airport card I've checked if the Apple's seal of approval was intact and it was so I hope that the card was new when I bought it.

I really don't know whether to buy the new I/O card ($100) and try it, cause if the problem persist with this new one card I would have thrown $100 into trash' cause it's difficult to resell this card on eBay or any other site :(

Thank you for answers guys.

PS: Now the airport temperature is 43°C and has just crashed

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Do you have an Apple store in your area? I'd take it in, and cross your fingers and hope you get a good tech who will do some free testing. They may be able to verify your card is good/bad, or test it with a known-good one. But I would definitely try to get help from Apple before potentially facing more money/frustration issues. They have special diagnostic tools that are specific to Apple that might be able to give you a clearer picture where the problem is.

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having the same issue on a 2.6 17inch i just bought.

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Exact same thing here.

restart the it turns off after a while, is it not in full contact with the antenna?

I've got a big problem with my airport card.

I've got a Mac Book Pro 17" 2.5 GHz Intel Core 2 Duo (Model Number: A1261) of 2008. My airport card worked very well till one day that I lost my connection unexpectedly. The only one message is: "Airport: Off" and "Turn Airport On" but although I try to turn it on the airport stays off. I've changed the card, thinking that was the problem, but isn't it. Now my Airpor work well at Mac startup and after a random time she goes off. When she's off the only way I can rekindle it is to restart the Mac.

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Exact same thing here.

I've got a Macbook pro 17" 2.4 core 2 duo july 2007. My Airpor work well at Mac startup and after a random time she goes off. When she's off the only way I can rekindle it is to restart the Mac.

I thought it can be a software problem too and I've format my Mac with snow leopard. The problem still there.

I reset PRAM and SMC too ... still there

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mine had orange tape on it when i saw it. got it back from apple and it was gone, and my airport stays on now, yay.

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i hav the same problem with my mac. what should i do format my laprop or change my airport card. Some people says there is no solution. i cant take my laptop to a apple store because no i am living on a country where there is no apple center.

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change the airport card yes.

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I too have the same problem. I have a Macbook 13" A1280 and the airport card just quit out of the blue. It says "Airport card not detected" and it won't allow me to turn airport card on. If I reboot it about a dozen times it will suddenly be working again, but will inevitably crash they system. The only thing I can do at this point is reboot and hope the airport card will be detected after reboot, but it's a 50/50 chance. Most often it is not detected.

After reading the forum posts here I think I'll just bring it to the Apple store and see what they come up with. I'll post what they say here.

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I too have this problem, i solve it with Onyx (http://www.macupdate.com/app/mac/11582/o...)

Not sure for how long this works...

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@JD DCI, how did you fix this problem using Onyx?

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I solve this problem with leopard instalation disc. Boot from the DVD, and run a verification disc and repair disco. I don´t know for how long this gonna work. If you don´t have a leopard disc, run Onyx.

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Phew, yes. My problem started when I installed a 1TB hard drive instead of the DVD drive. I bought a kit from MCE Tech, installed it and reinstalled everything onto the new disk. No problems so far, except. "Wi-Fi hardware could not be found" I did all the things proposed including erasing the HD and reinstalling Lion and everything else. No change. So now I've bought a new WiFi-card for my MBP 13' mid 2010 from Hong Kong and tools from IFixIt. Tonight I sat down (in Stockholm, Sweden) to assemble the kit. I got as long as "Removing the 6,5mm torx screws" when I realized that this screwdriver was not mentioned in the IFixIt manual'... Ok, so I had to close the MBP again, order a new screwdriver and now I'm waiting for it to arrive. I'll get back to you with my progress.

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I have this same problem with my 2007 era MacBook Pro 17". It's definitely temperature related. When the MacBook fan kicks on, I have only about 2 minutes until the WiFi goes away.

I have replaced the Airport Card several times. Have reseated the connections. I temporarily "solved" the problem by using an external screen and keyboard, putting the MacBook on a heatsink, and aiming a solder smoke fan at it. I could keep it running all day like that, as long as the fan was on. As soon as the fan went off and the MacBook heated up, everything would go off.

I wonder if there's a bad solder joint to the AirportCard connector, or perhaps the connection to the antenna is heat sensitive. The software used to tell me there was no airportcard, when the WiFi crashed. It doesn't do that with the latest OS I'm using. Rather, it just stops seeing all WiFi hotspots.

If anyone has any further info on this I'd appreciate it.

Cheers,

Joe

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Which side of the computer is the card on?

I would think with all these troubles Apple should fix these for free. I have the same problem, I cannot get access to my wifi, though every other device at my house can. I have a 2008 macbookpro and this has been going on for years because I am too cheap to by a card, but after looking at the comments, the card might not be the problem. Has anyone spoken with Apple?

Please help, I am a computer stooge

Greenhorn

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I Finally bought a used I/O card and Airport card since then everything has been working fine.

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Riki will be eternally grateful.
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