IMac with airport extreme doesn't recognize wireless airport express

I have an Airport Extreme that is functioning and want to extend my network via WIFi with an new airport express. The express is just accross the wall from the extreme but my iMac does not recognize it. I need all the help I can get on this one.

Start by placing the new AirPort Express in the same room as the Extreme and your iMac. Your iMac should now "see" the new Express on the dropdown menu of the AirPort icon on the OS X menu bar. Select the Express and the AirPort Utility should start up to allow you to configure the Express.

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Trying to set up wireless network on PC with Airport Express

I'm helping a friend set up his network with AirPort Express. He's got a modem attached to his PC, and currently has a router that sends a wireless signal to a receiver on the PC in the other room. Now he's added a Mac, and the old router/receiver doesn't work with Mac. So he bought an Airport Express.
I've turned on the Airport, and first I connected the ethernet cable from the modem to the AirPort. Per the AirPort utility I put on the PC, it couldn't find it (got the flashing amber light). So then I took out that ethernet, and I hooked up the ethernet directly from the CPU to the AirPort. Suddenly, it was found, and it took me step by step through the set up. It asked for password info from our internet provider (??why would I have that info??), so we just hit "enter". Then it couldn't set up the network, and said to check the "manage network settings". I've tried everything. Not only can I NOT manage to create a network, but now NEITHER ethernet cable will cause any recognition in the AirPort. All I get is the blinking amber light. I'm about to throw all the computers out the window...it really should not be this difficult. I've set up networks in my own home, before, with both PC and Mac, and never had these problems. So, now, I've had to relink up the old router/receiver in order to send out this call for help. Can anyone suggest anything else to try before I use these computers for target practice?
Thanks in advance,
Jennifer
P.S. The main PC w/modem is on Vista with service pack 2.0...since I can't even get that one working with AirPort, I hardly think it matters what the other computers are...

I had some initial problems too. Make sure that you have the latest Airport Utility in the utilities folder. I used that to correct the problems I had when I first got Time Machine. I recommend resetting everything through there to get it working right.
Mine is not set up to run an n network because my macs are all g and b compatible. Does the airport utility see the time machine? And if so, does it have a green light in the utility?

How make wireless connection with airport express to Yamaha Clavinova CVP-403 ?

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Hi Henry - you seem to be a very helpful and knowledgeable person and I am wanting to dive in to the depths of wireless working at home and could probably do with your advice. I certainly dont have as much knowledge as Jaybee and if hes had problems I am feeling a little apprehensive.
I know that the first thing I need to do is get an ethernet modem to use with Airport Express as I currently only have a USB modem. I was wondering if you have any recommendations or if I should go straight for the Netgear DSL modem/router (DG834B) that Jaybee ended up with. Although the bit about disabling the Airport Express resp. Extreme routers scares me rigid
I have looked at About this Mac and got the following for you hope its helpful.
OSX 10.3.9
1.33 HGz PowerPC G4 processor
Airport Extreme: Worldwide
Firmware: 400.17(3.90.34.0.p11)
Airport admin utility: 4.2 (v420.31)
My ISP is also Tiscali (UK) - they have said they can only provide modem support on the USB modem they provide so once I switch to an ethernet modem Ill be on my own. I have checked the Tiscali website and found the following modems, so I would assume (probably unwisely) that they would be compatible with my account...
Zoom X6 5590 DSL Modem (55907200)
D-Link DSL-300T
Zoom Hayes ADSL Ethernet (H0-15805) (081580572)
Any help is very gratefully received.
Regards,
... LIZ ...

My two iMacs frequently go offline when I have our iPad and two iPhones-5 connected with Airport Express (2nd edition). If I disable WiFi on my three "i" devices no problem. Any thoughts on this?

My two iMacs frequently go offline when I have my iPad and two iPhones-5 connected with Airport Express (2nd edition). If I disable WiFi on my three "i" devices the offline problem stops. Any thoughts on this?

.....doesn't that seems to suggest the modem?
That is what I have suggested....twice now. From posts above:
My opinion would be that it is likely not the ISP, unless you have complete loss of Internet service for all devices at the same time......it is the Comtrend device....
and
I believe that the problem lies with the modem, and not the ISP signal.
Your ISP will likely have a different opinion, though. Please keep us posted on your progress.

Does airport extreme 802.11a/c work with airport express 802.11n

does airport extreme 802.11a/c work with airport express 802.11n

"You can use the AirPort Express to extend the signal provided by the new AirPort, but the Express will not extend "ac" wireless since it does not have that capability. The Express will extend an "n" wireless signal if that helps."
This is what I am trying to understand.
So AXTRM w/ sep SSID for 2.4 (b/g/n) - call it SSID1 - and 5GHz (ac) call it SSID2 - WiFi Explorer confirms AC mode on 5G.
Using an AXPRESS to extend - I have the option of SSID1 b/g/n *and* the 5GHz ac SSID2 in the pulldown (it sees both?) --> if I select SSID1, it also extends this same SSID in 5GHz (both showing b/g/n) >> so I now have 3 signals on SSID1 (XTRM 2.4G, XPRS 2.4G and XPRS 5G) b/g/n and one signal on SSID2 (XTRM 5G AC) ac
If I select the 5Ghz ac SSID2 to extend - it prompts me "do you also want to extend (the 2.4GHz SSID1)?" --> select yes and I now have 2 signals for SSID (XTRM 2.4G & XPRS 2.4G) b/g/n and 2 signals on SSID2 (XTRM 5G 802.11ac & XPRS 5G 802.11 a//n)
Is the 5G SSID2 actually being extended from the Airport Extreme to the Express?
The reason I bring this up is I am having a lot of issues since iOS8 came out (especially on iPhone 6). Everything I am reading is pointing to when people have 2 AP's set to use the same SSID. When you walk to a part of the house where 5G 802.11 ac signal marginalizes, the phone does not immediately hand over to the 5G 802.11 a/n Airport Express.
My thought was separate the SSID's but to me, if the Express can't extend 5Ghz from the Extreme, it's taking a step backwards. I am better off getting a more powerful router like an ASUS and going with one AP, drop the WiFi roaming altogether
Any thoughts?

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Hello Laurabcn,
Thank you for using Apple Support Communities.
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When adding WRE54G to wireless network incompatible with Airport Express

I added a Linksys WRE54G to expand my network to a Powerbook G4 laptop with a weak signal. When I connect the wireless expander, I no longer see the Airport express in the airport utility. I cannot access the printer or itunes speakers attached to the airport express. When I power off the expander and have a weaker signal, the airport express is available again. I don't know how to configure the wireless expander to work with airport express, and if I try to create a WDS network with the airport express (currently unsuccessful), then I believe I will lose itunes support (and maybe the printer?).
Does anyone know how to configure the WRE54G so that I can still see the airport express on my network?
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Brigitte

I was having the same problems. Try this link, someone seems to have solved it.
http://discussions.apple.com/thread.jspa?threadID=1271648

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Did the Blu Ray player connect wirelessly to the Express before or has it never been able to connect to it at all?

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Do you mean the external hard drive is not mounted on the iMac desktop?
Check if Disk Utility sees the drive. Applications / Utilities / Disk Utility. If the external shows up in the left column, select it and click on Mount.
If it does show up this way, I recommend using DU to Repair Disk.

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Mac OS X not working with Airport Express but Win XP is ok on the same iMac

Hello everyone,
as the message says I am having troubles with Airport Express.
To say it quickly, I live in a house share in London, and everyone in the house enjoys the wifi without troubles. I do as well with my macbook from every point of the house.
The troubles are with the big iMac: with mac os the internet signal won't just work at all, pages take minutes to load with both safari and firefox, and most of the times the loading times out.
I thought it was a signal power problem, but the weirdest thing of them all is that... when I switch to Windows XP on the same iMac (and right now I am writing from that!) the internet works perfectly!
Then I switch to mac os again... and slow internet again!
Anyone has an idea of what could this be?
Many thanks for the support

Yes, I just discovered this problem on my own machine.
I just wanted to check some settings and discovered that the behaviour of the GUI of Server Admin was somewhat "erratic": First this "no services are configured" message. Some of the configured servers were marked with the usual green "up and running" bullet, others dark grey - those were normally configured and running and clicking the appropriate line seemed to force Server Admin to check the actual state and then turned also green. But sometimes configuration pages were "greyed out", or while switching through the tabs Server Admin claimed that where were "unsaved changes" which should be saved (or discarded).
And then SMB: this was light grey, as usual when a service is not running and clicking on it I browsed through the configuration tabs - everything seemed ok (all my settings were correctly shown, configured as PDC with right domain name etc.) - and I started the service. Then suddenly the configuration settings changed to the default settings - no more PDC, but a "standalone server" with workgroup name "WORKGROUP"...
Looks for me, as if Server Admin lost it's "source" file for the configuration (the file in /var/db/smb.conf says, that it is automatically generated -- does somebody were the source file is stored?)...

Imac-ethernet-airport express-2wire gateway

I bought an imac g4, 17" 1.25GHz. I am trying to connect to a ATT DSL 2Wire gateway. The iMac's wireless was via a hawking usb adaptor. That worked clunky, and when I tried to update the drivers it started crashing the system. I uninstalled the drivers and now the stick is non functional.
I went to the genius bar and asked what to do. Answer: buy a used airport extreme card on ebay. I did that and installed it. The reception was very weak, and I could only connect if I was within 4 feet of the gateway.
I went back to the genius bar. The genius put a different airport extreme card in the iMac and verified the weak reception; genius says the antenna doesn't work. I asked him what to do. He said third party repair shop to fix the antenna, or connect with airport express.
I have an airport express that I use for airtunes, so I decided to try that. I have it configured to Join A Wireless Network and to Allow Ethernet Clients. I had previously connected my Viera TV this way, but it was a pretty fragile connection.
The iMac says that ethernet is working but it will not connect to the gateway. (i.e, in network assistant the first button is green but the second is yellow.)
Any help would be appreciated.

1. Is it correct to configure Airport Express to Join Another Network and Allow Ethernet Clients?
Yes
2. If so, what do I have to do to get the Imac to connect via the ethernet connection? (on 10.4.11)
Verify that you have a good ethernet cable by testing it. Then verify that the ethernet card is working correctly on the iMac. You'll need to temporarily connect the iMac directly to one of the LAN <-> ports on the 2Wire router. If you can connect to the Internet, you know the ethernet card is good on the iMac.
Then verify that the ethernet port is working on the AirPort Express by testing it with another computer's ethernet port. Turn off the wireless on the computer and verify that you can connect. If you can't, power cycle the entire network as follows:
Power everything down, order is not important
Power up the modem first and let it run a few moments, then start the 2Wire router and let it run a few moments, then the AirPort Express the same way and finally your computers one at a time the same way
Once you have verified that the ethernet port is working on the AirPort Express and the other computer, try connecting it to the iMac. Power cycle as above if necessary.
3. Is it possible to fix the airport antenna, or is it a hopelessly expensive repair?
Assuming that the antenna is at fault, it's almost always a very simple connector that has come loose or wire that needs re-soldering. This takes a few seconds to fix. But it probably takes an hour to disassemble the computer first, then assemble it after the repair. It's time intensive, so you might want to get an estimate first. If no problem is found, you'll still pay the same labor rate for the "repair".
Message was edited by: Bob Timmons

How do i use my time capsule and extend the network with airport express

I have a new iMac and Time Capsule, how do i extend the network with airport express. My time capsule does have a guest net work, and logins and passwords? I am no computer person. So for me it would have to be spelled out.

Use the search as this has been done to death ..
Bob Timmons is the expert on this.. look at his answers here.
https://discussions.apple.com/thread/4274187?start=0&tstart=0
https://discussions.apple.com/message/21856077#21856077
This has been automated in the v6 utility. I am used to doing it manually in v5 utility which is also fairly easy.
Apple doco is also good to read.
http://support.apple.com/kb/HT4145
http://support.apple.com/kb/HT4259
Note.
You cannot extend the guest network unless everything is up to date 7.6.3 firmware. And that is only with the TC as the main router in the network.
All apple routers can be configured as the main wireless or as the extend wireless.. so don't worry if a post uses express or extreme or TC.. they are for wireless, the same thing.

IMac with airport extreme doesn't recognize wireless airport express

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