Macbook Pro losing connection to Airport Extreme

I have a Macbook Pro running OS X Yosemite ver 10.10.3 connecting to an Airport Extreme. The connection between the AirPort and the Mac is randomly dropping causing me to lose WiFi. I have other devices (iPad, Lenovo Thinkpad) connected to the Airport extreme and they are not having any problems maintaining wifi connectivity.
Any thoughts on what the problem might be? Or is there an app I can download to diagnose the problems?

Diagnostics will tell you directly if you have a major issue.. It will list them for you.
Within the diagnostics there is a utility.. Since I consider Yosemite the major problem of all networking I have avoided wireless issues by avoiding Yosemite.. very simple really.. stick to earlier OS.
However if you use the utility it might show you something that is happening.. otherwise it is pure Yosemite.. bad drivers.. bad install (please clean install if you upgrade installed and then started having issues).. Network wise you can fix it.. but the method is arcane.
http://arstechnica.com/apple/2015/01/why-dns-in-os-x-10-10-is-broken-and-what-yo u-can-do-to-fix-it/
Apple ruined the dns app in Yosemite.. hence at least why it is unfixable. DNS is key to how networks function now.. !! You cannot leave it broken and expect reliable network operation.

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I think this is an issue with mac book pro Airport.
I'm not 100% on it though, but occasionally i get periods that WHENEVER i am connected to a wireless network, when my computer goes to sleep and wakes up again, the airport can connect to the wireless environment, but will not get an address, hence rendering useless.
I get the problem at work (airport extreme) and at home (netgear 'n' series modem/router). Everyone else at home is doing fine with the wireless setup, and so from knowing the situation arose in bothe environments, i put it down to the wireless enabler/ airport in the mac book pro.
(At least if you are using airport base stations, you can connect airport utility and restart it via software).
i notice that my comparable issue is nothing do do with leopard, airport extreme firmware update. but the symptoms are similar.
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Can't connect macbook pro to internet with airport extreme

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If you have ethernet still on your MBP plug it in by ethernet and tell me if that works.
Tell me how the Airport is setup.. what broadband modem and router you have.
What OS on the laptop? Yosemite I guess.. since it is the most troublesome.
Did it work before whatever change was made? Has it worked in the past? When did it stop and what did you do that coincided with it stopping?
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--K

I've tried Channel 1,2,3,4,5 (still need to try the others)
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qamera wrote:
my Macbook Pro cannot connect to our wifi connection via Airport Express, though the connection is visible in the Airport drop-down and it shows full signal strength.
You might try resetting your connection settings using the steps listed in this message:
http://discussions.apple.com/thread.jspa?messageID=10695921&start=1
They're not guaranteed to solve the problem, but they'll only take you a minute or so to try.

MacBook Pro not connecting to Airport Express, iPad connects fine

Hi. Suddenly my Macbook Pro cannot connected to our wifi connection via Airport Express, though the connection is visible in the Airport drop-down and it shows full signal strength. My iPad connects fine.

qamera wrote:
my Macbook Pro cannot connect to our wifi connection via Airport Express, though the connection is visible in the Airport drop-down and it shows full signal strength.
You might try resetting your connection settings using the steps listed in this message:
http://discussions.apple.com/thread.jspa?messageID=10695921&start=1
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Bump

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I'm a nube to Mac. Spent the last 15 years in the leaking boat called PC bailing and patching!
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I purchased an Apple Airport yesterday. My MacBook Pro worked just fine until sometime this morning. I was connected to work and then had to head to work. When I came back home, the laptop connection to the access point was lost and I've not been able to connect since.
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Brand New MacBook Pro Cannot Connect to Airport Express

Hi all,
Been reading through these pages and I think there are many others with the same problem as me but with no real answer, I thought it wouldn't hurt to ask anyway.
I have an Airport Express which I bought a couple of years ago. It initially worked fine on my old MacBook, I moved house and then it stopped working (flashing amber light syndrome). I got so fed up with it that it has been languishing in the loft ever since.
After a brief stint with a Windows laptop I decided it was time to return to Apple, and I haven't regretted it for a second.....until I got the Airport Express from the loft!
It simply, fundamentally and irrevocably...doesn't work! It's plugged in, amber light flashes but my nice new MacBook Pro just doesn't even recognise it exists. I have tried running the setup utility but at the first screen I am told that no unit is detected, I'm then told to check my Airport card (I assume it means the inbuilt modem which clearly works as I am writing to you guys now!). I can't even progress with the setup after this.
I have tried each of the Airport setup utilities to no avail (lap top cannot "see" AX).
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My apologies for the rambling post and please excuse my lack of computer knowledge. I really hope someone can help!

Fixed! You jut need a girlfriend with a lot of determination....not even sure she knows how she did it. Involved a lot of menus and a lot of swearing.
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Today I opened up a brand new MacBook Pro to find that it couldn't connect to AirPort. I use a WEB 40/128-bit hex. Is that a problem? I use a D Link router. Every time it comes up with "There was a error joining the network "networkname"."
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Fixed! You jut need a girlfriend with a lot of determination....not even sure she knows how she did it. Involved a lot of menus and a lot of swearing.
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here is one thread:
http://discussions.apple.com/thread.jspa?threadID=391986&tstart=0
Have you guys tried updating to 10.4.6
I believe they addressed some airport issues in the update.
Also you could download the firmware update
http://www.apple.com/support/downloads/macbookproearly2006firmwareupdate10.html
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Macbook will not connect to airport extreme

Hi
I hope that someone can help' The problem that I have concerns a macbook and airport extreme.
My mac book's hard drive had to be replaced and I am now in the process of setting up all the info again which was lost when my hard drive was replaced.
I am attempting to connect the mac book to the internet via airport.
I will try and list all the things that I have attempted.
1) Click airport on, this seems o.k.
2) Click join network this I do " Apple Network 2b4a1d" and it ask for a WPA password
3) I enter the password given by the service provider
4) It tries connecting to the network and the message back is Invalid password
Next, I click on the airport utility and scan for the bases station.
The message I get is:
"Airport Utility was unable to find any Airport base station"
Also in the Airport utility window the section in blue where the airport used to appear is blank.
Does any one have any ideas before I go to the service provider?
Look forward to any help that can be given.
Thanks
James

Since your iMac is successful, then we probably should concentrate on why you MacBook is having trouble. From your original post it sounds like you didn't know the WPA password so if this is still the case you can determine the password by looking at your iMac's Keychain in order to retrieve it. You can then try this password to connect the MacBook to the AEBSn.
o Run the Keychain Access utility found in \Applications\Utilities
o In the category column (on the left side of the utilities' window), select "All Items."
o In the right column look for your Network Name. It will have a "Kind" of "AirPort network password."
o Double-click on your network name listing.
o Click on "Show password."
o Enter your Mac's administrator's password
o Your wireless network's password should now be displayed.

Macbook Pro losing connection to Airport Extreme

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