Could this be due to an IRQ conflict? I just replaced a 3Com network card with a Realtek one. The 3Com was eth1 and configured in /etc/network/interfaces. The Realtek was named eth0. When I tried to bring it up with ifconfig it gave me the "invalid argument" message and it didn't work. I tried setting hwaddress in interfaces (because I noticed that the MAC address was 00:00:00:00:00:00), but that didn't help. Then I moved it to another PCI slot. It got named eth2 and now ifconfig works. I replaced eth1 with eth2 in /etc/network/interfaces and everything is fine.
-- No network connection possible after Hardy installation or upgrade https://bugs.launchpad.net/bugs/191745 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs