Fed up with Airport Extreme card errors connecting to wireless network

Since buying my black MacBook in June I have been 'enjoying' completely haphazard connection to my (encrypted) home wireless network, and been forced to sponge off some neighbour's open network half the time, as I keep getting the message 'there was an error connecting to the ... wirless network'.
I HAVE connected to my network successfully, and from time to time the ghost in my machine does let the MacBook connect to it all by itself, so there is no compatibility issue as such. I had hoped that downloading the most recent Airport Extreme Firmware Update would help, as it promised to 'improve reliability', but alas. I've tried downgrading to 10.4.9 as somebody suggested on these forums, but that didn't make any difference, so I'm now back on 10.4.10.
The whole thing is driving me completely bonkers, so if anyone has any suggestions (or would consider joining me for a complaint to the Advertising Standards Authority about Apple's misleading advertisements promising that 'it just works'...) I would be most grateful.

Don't order an ethernet cable from the Apple Store, any geek worth his salt might have one in his back pocket or a few in his bag (probably calls it a "patch cord".) Even Target sells them for $7-8 but anyone in IT buys them in bulk for $1-2 or makes their own for even less (materials cost, anyway, but they do take a bit of time and skill to put the ends on correctly).
As for the wireless, I moved from a Powerbook G4 to a MBP 17" to a new MBP 15," and I have been very disappointed in how less stable the MBP wireless connection is than my old PB G4 or even my wife's four year old iBook as she sits on the couch near me merrily surfing away while I grumble. However, I have a cheapy SMC wireless router - I don't have the problem at work where we have Airport base stations or at many other places with different brand routers - it's tough to nail down, and it's **** aggravating, especially when working on a deadline.

Similar Messages

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    64 bytes from 192.168.0.254: icmp_seq=1 ttl=64 time=536.642 ms
    64 bytes from 192.168.0.254: icmp_seq=1 ttl=64 time=3444.466 ms (DUP!)
    64 bytes from 192.168.0.254: icmp_seq=2 ttl=64 time=2547.260 ms
    64 bytes from 192.168.0.254: icmp_seq=3 ttl=64 time=2671.552 ms
    64 bytes from 192.168.0.254: icmp_seq=4 ttl=64 time=1671.272 ms
    64 bytes from 192.168.0.254: icmp_seq=5 ttl=64 time=2619.991 ms
    64 bytes from 192.168.0.254: icmp_seq=6 ttl=64 time=1619.350 ms
    64 bytes from 192.168.0.254: icmp_seq=7 ttl=64 time=2362.474 ms
    64 bytes from 192.168.0.254: icmp_seq=8 ttl=64 time=1362.662 ms
    64 bytes from 192.168.0.254: icmp_seq=9 ttl=64 time=363.461 ms
    64 bytes from 192.168.0.254: icmp_seq=10 ttl=64 time=1407.557 ms
    64 bytes from 192.168.0.254: icmp_seq=11 ttl=64 time=1020.437 ms
    64 bytes from 192.168.0.254: icmp_seq=12 ttl=64 time=119.570 ms
    ^C
    --- 192.168.0.254 ping statistics ---
    14 packets transmitted, 13 packets received, +1 duplicates, 7% packet loss
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    RSSI: -54
    Transmit Rate: 54
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    Réponse de 192.168.0.254 : octets=32 temps=2 ms TTL=64
    Réponse de 192.168.0.254 : octets=32 temps=3 ms TTL=64
    Réponse de 192.168.0.254 : octets=32 temps=4 ms TTL=64
    Réponse de 192.168.0.254 : octets=32 temps=3 ms TTL=64
    Réponse de 192.168.0.254 : octets=32 temps=4 ms TTL=64
    Réponse de 192.168.0.254 : octets=32 temps=2 ms TTL=64
    Réponse de 192.168.0.254 : octets=32 temps=3 ms TTL=64
    Réponse de 192.168.0.254 : octets=32 temps=3 ms TTL=64
    Réponse de 192.168.0.254 : octets=32 temps=6 ms TTL=64
    Réponse de 192.168.0.254 : octets=32 temps=4 ms TTL=64
    Réponse de 192.168.0.254 : octets=32 temps=8 ms TTL=64
    Réponse de 192.168.0.254 : octets=32 temps=4 ms TTL=64
    Réponse de 192.168.0.254 : octets=32 temps=4 ms TTL=64
    Réponse de 192.168.0.254 : octets=32 temps=4 ms TTL=64
    Réponse de 192.168.0.254 : octets=32 temps=1 ms TTL=64
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    Paquets : envoyés = 16, reçus = 16, perdus = 0 (perte 0%),
    Durée approximative des boucles en millisecondes :
    Minimum = 1ms, Maximum = 8ms, Moyenne = 3ms
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    Obviously, my Mac has very high latency where my PC works as expected.
    I tried resetting the PRAM, but i didn't affect my results.
    I tried updating Airport with the latest AirPort Client Update (http://support.apple.com/downloads/AirPortClient_Update_for_MacBook_and_MacBookPro), but my hardware wasn't eligible for that update (Mid 2007 MacBookPro).
    I believe this isn't a hardware bug because i get acceptable ping results when next to my router or in other rooms of my flat.
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    Regards,
    Laurent
    Hardware Overview:
    Model Name: MacBook Pro
    Model Identifier: MacBookPro3,1
    Processor Name: Intel Core 2 Duo
    Processor Speed: 2.2 GHz
    Number Of Processors: 1
    Total Number Of Cores: 2
    L2 Cache: 4 MB
    Memory: 2 GB
    Bus Speed: 800 MHz
    Boot ROM Version: MBP31.0070.B07
    SMC Version (system): 1.16f11
    Serial Number (system): W874551DX91
    Hardware UUID: 00000000-0000-1000-8000-001B63B19195
    Sudden Motion Sensor:
    State: Enabled
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    Type: AirPort
    Hardware: AirPort
    BSD Device Name: en1
    IPv4 Addresses: 192.168.0.2
    IPv4:
    Addresses: 192.168.0.2
    Configuration Method: DHCP
    Interface Name: en1
    NetworkSignature: IPv4.Router=192.168.0.254;IPv4.RouterHardwareAddress=00:07:cb:3e:04:ef
    Router: 192.168.0.254
    Subnet Masks: 255.255.255.0
    DNS:
    Server Addresses: 212.27.40.241, 212.27.40.240
    DHCP Server Responses:
    Domain Name Servers: 212.27.40.241,212.27.40.240
    Lease Duration (seconds): 0
    DHCP Message Type: 0x05
    Routers: 192.168.0.254
    Server Identifier: 192.168.0.254
    Subnet Mask: 255.255.255.0
    Proxies:
    Exceptions List: *.local, 169.254/16
    FTP Passive Mode: Yes
    Ethernet:
    MAC Address: 00:1e:52:72:05:2c
    Media Options:
    Media Subtype: Auto Select
    AirPort Card Information:
    Wireless Card Type: AirPort Extreme (0x168C, 0x87)
    Wireless Card Locale: Worldwide
    Wireless Card Firmware Version: 1.4.16.2
    Current Wireless Network: kalamar
    Wireless Channel: 5

    Ok, I must have jinxed myself.
    High latency with my Negear WPN824v3. As previously mentioned, the other wireless computers connect fine. Latency remains regardless of the power connected or not.
    Please advise.
    PING 192.168.0.1 (192.168.0.1): 56 data bytes
    64 bytes from 192.168.0.1: icmp_seq=0 ttl=64 time=11.607 ms
    64 bytes from 192.168.0.1: icmp_seq=2 ttl=64 time=7280.106 ms
    64 bytes from 192.168.0.1: icmp_seq=3 ttl=64 time=9209.019 ms
    64 bytes from 192.168.0.1: icmp_seq=4 ttl=64 time=8237.475 ms
    64 bytes from 192.168.0.1: icmp_seq=5 ttl=64 time=7262.603 ms
    64 bytes from 192.168.0.1: icmp_seq=8 ttl=64 time=4313.763 ms
    64 bytes from 192.168.0.1: icmp_seq=9 ttl=64 time=3336.361 ms
    64 bytes from 192.168.0.1: icmp_seq=10 ttl=64 time=2339.579 ms
    64 bytes from 192.168.0.1: icmp_seq=11 ttl=64 time=1344.110 ms
    64 bytes from 192.168.0.1: icmp_seq=12 ttl=64 time=345.132 ms
    64 bytes from 192.168.0.1: icmp_seq=13 ttl=64 time=1191.119 ms
    64 bytes from 192.168.0.1: icmp_seq=14 ttl=64 time=3969.730 ms
    64 bytes from 192.168.0.1: icmp_seq=15 ttl=64 time=3992.111 ms
    64 bytes from 192.168.0.1: icmp_seq=16 ttl=64 time=3692.648 ms
    64 bytes from 192.168.0.1: icmp_seq=17 ttl=64 time=2927.634 ms
    64 bytes from 192.168.0.1: icmp_seq=18 ttl=64 time=2130.216 ms
    64 bytes from 192.168.0.1: icmp_seq=19 ttl=64 time=1437.424 ms
    64 bytes from 192.168.0.1: icmp_seq=20 ttl=64 time=2385.203 ms
    64 bytes from 192.168.0.1: icmp_seq=21 ttl=64 time=1393.622 ms
    64 bytes from 192.168.0.1: icmp_seq=22 ttl=64 time=396.783 ms
    64 bytes from 192.168.0.1: icmp_seq=23 ttl=64 time=1.295 ms
    64 bytes from 192.168.0.1: icmp_seq=24 ttl=64 time=115.793 ms
    64 bytes from 192.168.0.1: icmp_seq=25 ttl=64 time=3.137 ms
    64 bytes from 192.168.0.1: icmp_seq=26 ttl=64 time=10.240 ms
    64 bytes from 192.168.0.1: icmp_seq=27 ttl=64 time=2.709 ms
    64 bytes from 192.168.0.1: icmp_seq=28 ttl=64 time=9.958 ms
    64 bytes from 192.168.0.1: icmp_seq=29 ttl=64 time=1818.371 ms
    64 bytes from 192.168.0.1: icmp_seq=30 ttl=64 time=1470.613 ms
    64 bytes from 192.168.0.1: icmp_seq=31 ttl=64 time=472.520 ms
    64 bytes from 192.168.0.1: icmp_seq=32 ttl=64 time=2255.417 ms
    64 bytes from 192.168.0.1: icmp_seq=33 ttl=64 time=18198.039 ms
    64 bytes from 192.168.0.1: icmp_seq=34 ttl=64 time=23288.761 ms
    64 bytes from 192.168.0.1: icmp_seq=35 ttl=64 time=25150.840 ms
    64 bytes from 192.168.0.1: icmp_seq=36 ttl=64 time=26813.832 ms
    ^C
    --- 192.168.0.1 ping statistics ---
    63 packets transmitted, 34 packets received, 46% packet loss
    round-trip min/avg/max/stddev = 1.295/4906.111/26813.832/7241.136 ms

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