24" iMac 2.8Ghz problem with wireless reconnection wake up

Each time i turn on my new iMac or wake it up it refuses to auto reconnect to my Wireless network. Have to manually connect it up by typing name and key in despite this info being in preffered networks list.
Only thing that came to mind is not showing the SSID, ie its invisible. That said 3 other iBooks in my house all have no issues... + tried my mothers MacBook, also perfect. Tried clearing Keychain access to WEP hex key. Removing network from 'Preffered network list' restarting and re-entering it...
Any ideas please?

I just installed my new 24" iMac 2.8Ghz and noticed the exactly same problem.
I have three different wireless networks available to test:
Airport network (Extreme+Express in WDS mode, SSID hidden, WPA2 Personal)
Airport Network (Express, SSID visible, WPA Personal)
D-Link 802.11b network (SSID visible, WEP 128)
Most of the time I can connect to each network manually by selecting "Other.." from Airport menu but iMac does not auto reconnect to any of these networks when they are added to preferred networks list. Their network keys are succesfully stored to keychain. I have 90%-100% signal to all of these networks.
My other Macs (MacBook Pro, iMac G4 20" and iBook) are able to connect and auto reconnect without any problems. All computers including this new iMac 24" has latest Mac OS X 10.4.10 and all software updates installed.
Occasionally iMac also loses all (even SSID visible) networks from Airport menu. Also when this happens clicking the Aiport menu displays "spinning beach ball" for several seconds.
First sign of wireless network trouble I noticed was when I first started the new iMac and tried to connect to Aiport network with the Setup Assistant at first boot. iMac did not detect any of these available networks even if I manually entered their SSIDs and encryption keys. This tells me that problem is not due to misconfiguration made after "fresh from factory"-boot.
I am going to call Apple support today.

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Sorry for the bad topic, and sorry for my english.
And now the problem.
I have just bought my first laptop, and got almost everything to play nice in arch, except the wireless.
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Update all your third party software or uninstall and reinstall 10.6 versions.
If your going to 10.7, be warned a lot of software will not work at all and your 10.5 era machine will be slow, perhaps even have problems as 10.7 is problematic on older hardware.
http://roaringapps.com/apps:table
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See #1-15 here, tune yourself up good.
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Do the black bars drop also at these times?
Make a New Location, Using network locations in Mac OS X ...
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Hi Eaglecorpse, and welcome to the forums!
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This seems to be a slightly obscure question -- at least, I can't find a ready answer for it with the search terms I've tried, possibly because most people don't use this particular accessory with the iPhone.
I have an iPhone 4 that I bought from and use on Softbank, the carrier in Japan, where I live. While visiting the United States recently, I bought an Apple Wireless Keyboard from an Apple retailer. I wanted to carry it with me for use with my iPhone, so I would reliably have a convenient way to access the Internet without being confined to the touchscreen keyboard. (I live in a rural area where WiFi spots are uncommon, but my iPhone's access to Softbank's data network is fairly good and consistent.)
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THAT'S IT. Sir, you have solved my problem. Thank you!!
And I feel a little silly; this will doubtless seem to an expert as if it should have been obvious all along. But isn't that always the way in hindsight?
Here's what happened: The key combination I was trying to remember was "Apple/command + space on the hardware keyboard," as you just said above. The "menu" it brings up is, apparently, a list of keyboards. I take it that this list is the same as the list of the "virtual" keyboards on the iPhone? I have never had more than one external keyboard -- the Apple Wireless -- but I do have several keyboards active virtually, as the iPhone in Japan seems to come with both the "Nihongo Ten-key" and the "Nihongo Romaji" keyboards active, and I added several other languages as well.
When I hit "Apple/command + space," this list comes up on the iPhone's touchscreen. Highlighted and checked at the top is "English," just as if it had been selected all along. But nonetheless, when I first turn on and pair my keyboard with the iPhone, I need to perform this key-combination action, as if to "reselect" English, and then the keyboard promptly starts working properly as QWERTY. I can only assume that one of the others had been default-selected before -- presumably one of the Nihongo ones? -- and that this was causing the interference.
Thank you again! You have made me and my wireless keyboard very happy.

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Hi! I have a problem with my printer internet wireless connection. I do everything what is in manual for installation, but my printer won't connect to the internet. I have LaserJet Pro 200 color M251nw.

Hi
With the notes you have posted i see that you are unable to get on to printer apps, web services and eprint, please follow the steps given in the link given below and check the wireless connection and it should resolve the issue.
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Aneesh
I Represent HP
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New problem with wireless connection since 27th No...

Main desktop computer (windows xp) is connected directly to the internet via ethernet cable to BTHub3. No problem exists with this connection.
We have previously had no problem connecting Tablet, laptop, and internet radio via wireless connection to our Hub. Problems now exist with wireless connection to all of these devices:-
- When attempting to use any of the devices wirelessly, we are unable to obtain a connection to our Network (shown on the list of those available) - indicates - "out of range" or "obtaining IP address" or "authenticating" or "network disabled - poor connection"
- On occasions, the devices DO show that they are connected wirelessly but are unable to access the internet or use any programmes requiring an internet connection. Messages indicate - "no internet connection" or "connection timed out - retry" or "cannot access this webpage", even when we are in the same room as, and only a few feet away from the Hub.
- One anomaly has occurred in that the internet radio did connect and function normally on 2 occasions recently , for a duration of a couple of hours, before loosing the connection. However, during this time, the other devices still refused to connect.
Measures we have undertaken to try to resolve the problem are :-
- We have visited the "Wireless troubleshooting" part of the BT Helpdesk on several occasions, but had already tried the measures suggested here, including changing channels and hub reset.
- We have spoken at length to the BT tech. helpline who have been unable to resolve the problem.
- We have emailed BT Help and received a reply from India suggesting all the things that we have already tried (ie. a "stock answer").
- We are not confident enough to access the Hub Manager as we feel feel this is beyond our capability.
We would be most grateful if someone could help us.
Solved!
Go to Solution.

Wingman2, the first thing I would do is uninstall BTDesktop Help if you have it installed. It can cause more problems than it solves.
I would also suggest that the first thing to try is a factory reset of the homehub by pressing a pin into the recess button on the rear for about 20 seconds.
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See link for insider. Use the free version.
http://www.metageek.net/products/inssider/
See link how to change channel on homehub
http://bt.custhelp.com/app/answers/detail/a_id/14094
After that if you are still having problems you could try setting the home hub to b/g only instead of b/g/n. If one of your devices is not "n" capable it could help.
http://bt.custhelp.com/app/answers/detail/a_id/13768/session/L2F2LzEvdGltZS8xMzg4NzgxNjIyL3NpZC9Vd3p...

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the static, high frequently noise on the right is stronger than on the left.

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24" iMac 2.8Ghz problem with wireless reconnection wake up

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