Macbook Pro can't see Airport Express

I have an older Airport Express together with a recent iMac and MBP, both running 10.6.2. The iMac can see the Airport Express, configure it in Airport Utility, and access the internet fine. However, the MBP can't find the Airport Express at all - it doesn't even show up in Airport Utility. I've been beating my head against the wall all night trying to fix this, but no matter what I try, the MBP cannot see the AX. It can see that my network is available, but trying to login to the network results in an immediate connection failure, with a system.log entry of:
*Nov 19 21:51:49 Greywolf Apple80211Agent[461]: Error joining NETWORKNAME: Connection failed (-3930) result unavailable)*
Any ideas?

Managed to "solve" this on my own. I ended up deleting every airport and network preferences file from the system that I could find, and also trashed all the related keychain entries. Eventually, my MBP noticed the AX sitting two feet away.

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MacBook Pro can't see Airport network but three other macs in house can

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MacBook Pro can't find AirPort Express base station

My friend gave me an AirPort Express and I've set it up as a base station before. But the other day it was having problems and I reset it. Since then I have not been able to set up a base station. When I try to set up a new base station through the AirPort Setup Assistant I get the message "The AirPort Setup Assistant was unable to find your base station." I have tried soft resets, hard resets, and even factory resets, but I can't get the base station set up. Any suggestions?
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Macbook Pro doesn't see Airport Express

Hi,
I've been struggling with connection to my Airport Express.
My Macbook Pro (OS X 10.6.7 + all the latest updates) doesn't recognize it anymore. Occasionally, my wireless network was briefly visible to the Mac, but connecting to it only led to a time out. My Windows laptop from work did not have issues connecting, and neither did my iPhone...
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I am having the same problem. Right now i am sharing the wireless connection through the iPhone because my MBP2011 won't even see the SSID broadcasted by the airport express.
I hace tried emptying the keychain, emptying the list of known networks but nothing helps. It had the same kind of episode last week but after a lot of rebooting and editing of the AE over ethernet cable it started working again.
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MBP2011
OS: Lion latest update
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iStumbler doesn't see the AE-network.
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Sebastian

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Pull down the AirPort menu bar item on your MBPro and look for a network with a name like "Apple Network xxxxxx", where the x's are the last part of the "AirPort ID" of the AirPort Express. If you see that, select it, then use AirPort Utility to configure the AirPort Express.

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MacBook can't see Airport Express when waking from sleep

Hi,
I have an airport express unit specifically for using with air tunes. I am find that every time my macbook wakes from sleep although it reconnects to my wireless network ok it (and therefore itunes) can't see the AX anymore.
Rebooting the AX unit fixes the problem and i can again stream from itunes but i dont want to have to reboot the AX each time beacuse my MacBook goes in and out of sleep 5+ times a day as i move it around the house.
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I've recently developed a similar problem. When my PowerBook G4 wakes from sleep it can no longer see the Airport Express. It still connects to the Internet, and the AX continues to shine a steady green light. I've written an Automator script that restarts the router, and once it reboots the AX shows up again in iTunes or the AirPort utility.
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Yes and no.
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Dell Optiplex Windows XP Pro

Hi:
I had a similar problem with a DLink DI-624 wireless router and AirPort Express afew months ago. Here is what you can do.
As an intermediate step, which is undocumented but I found necessary, connect your Airport Express to the wireless router via an Ethernet cable. After the wired connection, your router will definitely see AirPort Express. Then you can go through the normal network registration process. Once this is complete, you can then power off Airport Express and disconnect it from the router and then place it where you originally intended. Once the solid green light comes on (30-60 seconds), you should be able to access AirPort Express the way it was intended, in a wireless manner.
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MacBook Pro can connect via Airport but not iPhone or iBook G4.

Anyone have any ideas? My Macbook Pro can connect to my Airport (v.7.3.1, 802.11n) but not my iPhone or iBook or a Windows Computer or WiFi Blackberry.
The connection is strong and detectable by the ibook but "unable to connect".
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I've tried Channel 1,2,3,4,5 (still need to try the others)
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I get the message "unable to join network..." The connection is very strong.

Utility Airport can't see Airport Express on my MacPro, although the same AE operates properly with a MacBook Pro

I've unsuccefully spend almost three days on the web to find the solution to a particular problem.
The configuration I'm running is as follow:
- one Airport Express attached to the Orange box to communicate through internet
- one printer attached to the AE through USB
Two Mac :
- one MacBook Pro : it operates with no problem using the AE and the printer, internet is fine since I write this message with that Apple. The two machines may operate simultaneously under different or identical softwares.
- one Macpro : two points:
* the Airport utility does not see the Airport Express, but the AE logo is fully active on the computer and I can read information with Preferences/Network.
* the Network diagnostic, launched from the MacPro, yields GREEN from Airport to FAI included steps ( green LED), but fails at the Internet step (red LED)
The computers are in the same bench, the AE being at 2 meter distance with no shield in between.
The Orange box is proved fine since all the internet communications are OK when I use the MacBook Pro . The phone is fine as well.
There are no other WiFi in the neighbourg.
The problem occured on Sunday evening for an unclear reason, while I was trying to connect a window XP based PC to link to the printer using the same wireless network ( I miserably fail as well, although the PC sees the Airport Express, but no way to connect to the printer : this is another issue )
The full network is running permanently for a couple of years with no issue, no fault, no reset, no slow down, just fine !
Both machines use the same OSX 10.6.8.
Information system returns the same data when reading the Airport network file.
Of course, the Airport Express yields solid Green light .
I've already checked the trouble shoot procedures as recommended by Apple with no success.
Well, this is a major issue since I do need my MacPro to handle work that must go through the internet.
Any advise and/or recommendation will be highly appreciated.
Michael

Hello,
Finally, I solve the issue by re loading the mDNSResponder which has been deactivated for an unknown reason. The system is back to normal operation.Thank so much to the Krypted.com site to provide the appropriate command to handle theplist file.
Michael

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).
Just as an update, I just connected my AX to my wireless router with an ethernet cable, a new network called 6ad16d appears to be available. Airtunes then works and I can connect to the internet (albeit slowly). I am not happy with this arrangement though as there is no padlock next to the new Apple network so I am worried that it isn't secure and surely I should be able to just plug my AX into the main and my hifi and it should work anyway?....just like it used to!
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.
Surely this should be easier?!

Can't see AirPort Express in second location

I have a new AirPort Express that works great at home with my MacBook Pro (extends network from Linksys wireless router, plays iTunes, connects to printer - even in Parallels / WinXP!). I saved this profile as "home".
I then simply unplugged it and took it to a friend's house thinking I could plug it in there and set up a 2nd profile, "friends", that does the exact same thing. Problem is I can't see it at the 2nd location, wirelessly or plugged in directly to the router or the computer via ethernet. When I bring it home again, it's still working just fine.
What else do I need to do to have it set up to work in two locations?
Thanks in advance.
MacBook Pro, Mini G4 Mac OS X (10.4.7)

There are two options:
1. Create the second profile while on your own network. When you get ready to move the Express, select the profile before disconnecting it from the network.
2. Perform a hard reset on the Express and reconfigure it once you get to your friend's house. If you've already created the profile, you can select the profile after the reset.

Macbook Pro can't see Airport Express

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