i confirm that the connection is unstable in leopard 10.5.1/10.5.2 even with "half-duplex" and the other things

i couldn't check in 10.5.3 because i have sse2.

kindzadza: so you loose connection in 10.5.3? what kext / kernel are u using?

Same problem here with unstable connection! Got a Samsung X11 laptop (Core2Duo with intel chipset) which used to work perfect, but for some reason the BC440x that worked without problems for half a year is stuttering now as is my sound (they seem related, sound stutters when the connection goes down). I am using 10.5.4.

P.S.: Using Taruga's AppleHDA for AD1986 soundchip.
P.P.S.: using "network diagnosis" in system preferences after the connection stalled, I get 3 green dots (Ethernet, "Netzwerkeinstellung" and ISP), while the last two, "Internet" and "Server" are yellow; maybe that helps.

Update: I removed AppleHDA.kext and ALCInject.kext from my Extensions dir, now my ethernet works fine (for 2 hours now). Replacing ALCInject.kext with HDAEnabler.kext didn't change anything, same problems.

Update #2: AppleHDA was not the cause for this, network gone again (lasted over 2 hours which was extraordinary).

To be able to trace down the problem I'd like to start a configuration comparison. Please reply to this with your computer's specs and whether you got the problem with BCM440x not working suddenly.

Laptop: Samsung X11 CeSeba
CPU: Intel Mobile Core2Duo T5500
Chipset: Intel i945PM revision 03
Memory: 4 GB OCZ 667 MHz DDR2 (only 3 GB recognized by BIOS)
Sound: AD1986A HD Chip, working with Taruga AppleHDA for 1986
Graphics: NVIDIA GeForce GO 7400 working with NVInject

Install Method: Kalyway 10.5.2 DVD, Kalyway ComboUpdate to 10.5.3, Apple update to 10.5.4
Kernel: Vanilla 10.5.4 Kernel

Things tried:

• Setting all available options for the network adapter in windows (Power saving mode, Flow Control, QoS, WOL, everything you can change)
• Playing with BIOS configuration (very limited options): SpeedStep on/off, CPU power saving mode enabled/disabled
• Removing AppleHDA and ALCInject
• Difference between starting MacOS from windows reboot or complete windows shutdown: none.
• Comparing ioreg output for network card from before and after it stops working: no difference

Be careful if you're running 10.5 via Leo4All. Reboot successfully killed my install. Booting with -v yields "Mac OS version" not yet set and then stops after spitting the kernel version.

Same issue here with hanging of the connection (xps m1210, original 10.5.4 installed with efi, netkas smbios, alcinject). Almost pure system. I installed most of the ionetworking family and bcm440x drivers and the results are the same.

One thing that may help devs pinpoint the problem: Vmware Fusion seems to crash networking immediately (just boot a windows guest and try browsing the internet: You'll have guaranteed crash in less than a minute).

Hope that helps.

insmac22

Any updates on this problem? I just updated my sse2 system to 10.5.2 and am reading about the Broadcom 440 problems with this patch ...

Hay Blade,
Is your BCM440x ethernet still work 100%? I tried what you suggested, but mine still drops the connection after a bit. I suspect for me it maybe the relation between the versions of AppleBCM440xEthernet.kext and IONetworkingFamily.kext. I'm on iATKOS v4..

Could you post your IONetworkingFamily.kext too?

I've got a Dell Vostro 1500 with a BCM4401-B0. Guess it could be down to the chip version too.

Thanks for you help.

I've set my broadcom 440 ethernet to half duplex but it still crashes, i dont remember this problem ever occuring in earlier 10.5 kernels... I am currently using the 10.5.4 kernel which was compiled for dual core support, using dell inspiron 6400.
I have tried using the kext from this thread as well as the kext that is in the dell setup package, but still get frustrating network crashes

Earlier when I had a Maximum 10.4.6 install, it used to work fine by default. I just tried a xXx 10.4.11 rev2 dvd. Maybe I had to manually choose something and I didn't.

Gonna give this a try.

Thanks!

I've spent like 1 1/2 days transforming my Dell Dimension 5000 (3 GHz Pentium 4/HT with 160 GB SATA and 2 GB Dell supplied RAM) from an XP box into a hackintosh. I used iLegend 1.3 a/k/a OS X 10.5.5 - and after figuring out which kernel to use (vanilla fails, I'm using the 9.4.0-StageXNU), it behaves like charm. The only difference from a factory Dimension 5000 is (positively) that I've replaced the ATI graphics board with a nVidia GeForce 7600 GS - which is playing smoothly with Quartz GL through NVinject. No trouble from here - I tell you, this "Mac" feels like a real Mac.

... However, the only problem was that stupid BCM440 which gave me the usual troubles. I tried a lot - finally I removed both iLegend's AppleBCM440XEthernet.kext and IONetworkingFamilty.kext (which, BTW, does not contain a BCM440X plugin) and installed the old IONetworkingFamilty.kext from zlazh's original post. No effect - network access, but unstable.

I figured out the shortest draconian solution would be to disable the BCM440 in the BIOS and simply use a different PCI based NIC. And while I was already wondering where I could get a 3Com 3C90x, I simply pulled my vintage hardware drawer open and used whatever I got my hands on first: Namely a NIC with a chip on it printed with an "Intel" insignia - fair enough for a lucky try.

LSPCI reports it to be a DECchip 21142/43 [1011:0019] (rev 41). And before I could worry anymore, en1 had already grabbed a DHCP lease and brought me instantly into the internet. ... I'm not sure where that driver comes from, as far as I can see it's not in the IONetworkingFamilty.kext, and I actually don't see anything indicating a DECnet driver. Anyhow - it works!

ok, i have the same Problem on my Samsung R55 Clayton (or something). When a torrent is started, network quits. This i can understand so far... don'´t know why, but there could be a connection.

But in my case it also quits when a program of Adobes cs4 suit is started...

Before I installed the cs4 programs everything worked great. I downloades a 6GB file without any problem.

Has anybode recogniced this coherence? Who of you have also installed any adobe programms? it might also be adobe acrobat.

P.S.: But Time mashine sais the IONetworkingFamily.kext is not changed since the system was installed.

Nothing to do with cs4...

I did a clean install from iatkos 10.5.5 now, same stupid thing.... random crashes ( sometimes getting slower first)...

Damn man.. need to fix this!

Arg.. something stupid, but half works, a simple script:

sudo kextunload /System/Library/Extensions/AppleBCM440XEthernet.kext
sleep 1
sudo kextload /System/Library/Extensions/AppleBCM440XEthernet.kext

And I got it to ressurrect, whoever , not 100%, and soon crashed again.
Gonna try do it with IONEtworking too now, just waiting for the next crash..

1 day w/o crashing.... crashed now.

I`ve tryed to unload IONetworking too, but it won`t go down..
Just BCM kinda works, it comes back but not 100%....

Any ideas ?!?!?! which kext can I unload and load that has to do with networking ? hmm maybe some PCI ?

bump!
eth crash only with massive packets (directly download) from virtual machine (NAT) ...
(making same thing whit wifi it doesn't happen)

stats:

from System Preference is up

from terminal
en0: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 1500
inet6 fe80::214:a5ff:fee9:925d%en1 prefixlen 64 scopeid 0x6
inet 192.168.6.76 netmask 0xffffff00 broadcast 192.168.6.255
ether 00:17:08:34:5e:bb
media: autoselect status: active
supported media: autoselect

ping to my ip is ok.
ping to my gw in dead
tcpdump -i en0 IS EMPTY!!

only reboot I can restore my eth connection..
I just tried load/unload kexts...