Quote Originally Posted by Harry Kuhman
By the way, the noapic option when booting knoppix does not seem to help me. When I boot this way I still have the same problem with my NIC that I've previously reported.
My Configuration(HD Install)
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System: Compaq Presario 900US
Processor: AMD Mobile Athlon XP 1700+ / 256kB cache
Memory: 512MB PC-2100 DDR SO-DIMM (2x256MB)
Display: ATI Mobility U1 (similar to Radeon 7500) on a 15" TFT XGA display (1024x76
Hard Drive: 30GB Toshiba on an ALI southbridge controller (ATA100)
Sound: ALI M5451 onboard PCI
Network: Realtek RTL8139 C+ Fast Ethernet (using 8139too module)
Dual booting with Windows XP with SP1 and all current security updates
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It does not work for me either. For whatever reason my BIOS disables APIC by default but Knoppix always reenables it at boot. I've been searching for two days on a way to disable apic or prevent Knoppix from reenabling it on boot.

I too have the same network issue, mii-tool -r followed by netcardconfig doesn't resolve the issue.

I did find a minor fix to the problem, i found it odd that when i first used Knoppix i could ping the gateway and proxy server on the network. After a few reboots i started to get the NETDEV.... error. I tried several boots with different options as well as removing some modules i added to /etc/modules to be automatically loaded, no luck. Finally i booted with Linux nopcmcia and sure enough i had network access again. Too bad its not fully operational. After setting the $http_proxy variable and doing a apt-get update and apt-get -u upgrade as well as testing out lynx i decided to start KDE(which for the record i'm not a fan of), to my surprise i couldn't ping anything on the network or pull up pages. So i did a Ctrl+Alt+2 to pull up command line and the first thing i see is our beloved NETDEV error.

For whatever reason under my configuration the network is not accessible under KDE. On the same command line i did a netcardconfig and i was able to use apt-get and lynx again but nothing in GUI.