G4 does not detect existing Airport network

Following a physical move to another room my G4 does not recognize any network, including an existing Airport Extreme. My G5, also in the same room as the G4 does recognize the Airport and other networks.
I rechecked the airport card in the G4 to ensure it didn't come loose. Still no luck.
I have an Airport Extreme (g), with an Airport Express being used as a network extender.
Any help would be appreciated.
Dave

Assuming that the card is recognized by the iMac, one or more of the following is true:
The antenna wire has came loose from the card. If the card is an AirPort Extreme card, verify the antenna wire connection using the photos in KB 108039, Properly attaching the antenna on an AirPort Extreme Card.
The antenna wire is damaged.
The RF section of the card has failed.

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[SOLVED]Broadcom BCM4313 does not detect all wireless networks

EDIT:
I'm really sorry to the Arch forum users and to the admins for posting such easy problems which i could have fixed myself.
To solve this what i did was to change the channel on the router and its 802.11 mode. I turned my main machine on and it was doing the same as the machine i posted here first so it was two machines and so probably not a problem of the pc but of the router.
I don't know if this means my network cards are just bad or something else but it works now.
Hello,
I'm having a problem with the computer on the title. When i try connect the computer over wifi(to my own network), it doesn't "see" my network. Sees all my neighbours networks but not mine. It was working till a couple of days ago.
lspci -k
05:00.0 Network controller: Broadcom Corporation BCM4313 802.11bgn Wireless Network Adapter (rev 01)
Subsystem: Wistron NeWeb Corp. Device 051a
Kernel driver in use: bcma-pci-bridge
Kernel modules: bcma
rfkill list
0: samsung-wlan: Wireless LAN
Soft blocked: no
Hard blocked: no
1: samsung-bluetooth: Bluetooth
Soft blocked: no
Hard blocked: no
2: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
3: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
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I also tried loading different modules still related to b43(like the legacy one) and installing the firmware from AUR.
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Last edited by jantonio2992 (2014-07-20 11:22:03)

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Thank you for shedding some light on the subject, but actually the channels the router permits are through 2.412 to 2.472 (more less, i think that writing here 13 frequencies wont help anyone ), and what i did was look on my working laptop, the channel for the networks around the house and select on my router a channel that wouldn't be the same, but i think the router has a built in tool to do this.

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Gusar wrote:
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I know that. Are you saying the new 2200 only does N at 2.4GHz?
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I have an eMac which I want to connect to my home wireless network. My router is D-Link-601 tech 802.11n. My emac is wireless ready but does not contain an airport card. Do I need a card and an airport station? What else?

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Wish some Apple folks would chime in...
Apple is not here. Even if they might rarely monitor these boards, they will not respond. We're all users, just like you.
Suggest that you open Macintosh HD > Applications > Utiltiies > AirPort Utility
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Click the Wireless Options button
Check one more time to see if you still have the 5 GHz Name option enabled. If not, enter a check mark and click Update to save the new settings.
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If you still cannot "see" the network from any device, about all that you can do at this point is reset the Time Capsule back to factory defaults and try the configuration again to see if it will "take". Lion is causing some strange issues, and this may be another.
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Hello everyone,
I just updated my 3GS from iOS 5.0.0 to 5.0.1
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You do not need to keep posting the same thing over and over again.
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Instead of LAN i am using WLAN to connect PC and mobile. All communication read and write operations are performing ok. But the only problem i am facing is that once i disconnect network connection from mobile my labview TCP read operation does not detect it and only timesout at its specified interval. Although for Bluetooth network connection if i disconnect from mobile then BT read detects it as network conncetion closed by peer error (66).
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Solved!
Go to Solution.

Awais Qureshi wrote:
Hi Dear Norbert,
I am still waiting for your reply. Whats error you get once you unplug LAN cable? i am unable to understand how to detect Disconnection during Read Time out. Kindly help me in this.Thanks
Dear VT Kim,
I studied your recommended article but which way Labview handles TCP close connection then. i am unable to understand how to detect Disconnection during Read Time out. Kindly help me in this.
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I have not tested it but more likely than not you would get an error 59 when the network cable is unplugged. Error 66 is for when the network is still up and you attempt to communicate on an established connection that has been closed by the other side. This is not an error that you will se from a TCP read very often.
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I have airport express but it is not recognised by either my macbook pro or my ipod on my wireless network. It does not show in airport utility. Might I not have an airport card?

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I have airport express but it is not recognised by either my macbook pro or my ipod on my wireless network. It does not show in airport utility. Might I not have an airport card?
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