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    lan not working after installation

    hi all,
    i've just downloaded the kubuntu live cd and tried on an old desktop (celeron 600). turing the live session (bifore the installation) everithing was perfect, and the internet connection was good.
    so i've installed on hard disk.
    the installation was free of errors and downloaded some packages when needed, but on reboot the lan doesn't work anymore and i'm not able to fix this.
    if i boot kubuntu from the live cd lan works so it is a difference in the way between the live method lan handler and the installed one
    ... i've seen that each time kde starts an error occurs in kdestop process, and it closes

    i use a rooter with DHCP active.
    default settings on kubuntu seems to be right, and the eth0 is enabled
    is someone able to help me?

    i post:
    -interfaces

    auto lo
    iface lo inet loopback
    address 127.0.0.1
    netmask 255.0.0.0

    auto eth0
    iface eth0 inet dhcp

    auto eth1
    iface eth1 inet dhcp

    auto eth2
    iface eth2 inet dhcp

    auto ath0
    iface ath0 inet dhcp

    auto wlan0
    iface wlan0 inet dhcp

    ifconfig -a
    eth0 Link encap:Ethernet HWaddr 00:08:A1:27:5E:08
    inet6 addr: fe80::208:a1ff:fe27:5e08/64 Scope:Link
    UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
    RX packets:37 errors:0 dropped:0 overruns:0 frame:0
    TX packets:76 errors:0 dropped:0 overruns:0 carrier:0
    collisions:0 txqueuelen:1000
    RX bytes:6248 (6.1 KiB) TX bytes:22824 (22.2 KiB)
    Interrupt:10 Base address:0xe000

    lo Link encap:Local Loopback
    inet addr:127.0.0.1 Mask:255.0.0.0
    inet6 addr: ::1/128 Scope:Host
    UP LOOPBACK RUNNING MTU:16436 Metric:1
    RX packets:3 errors:0 dropped:0 overruns:0 frame:0
    TX packets:3 errors:0 dropped:0 overruns:0 carrier:0
    collisions:0 txqueuelen:0
    RX bytes:172 (172.0 b) TX bytes:172 (172.0 b)

    sit0 Link encap:IPv6-in-IPv4
    NOARP MTU:1480 Metric:1
    RX packets:0 errors:0 dropped:0 overruns:0 frame:0
    TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
    collisions:0 txqueuelen:0
    RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)



    /etc/init.d/networking restart
    Listening on LPF/eth0/00:08:a1:27:5e:08
    Sending on LPF/eth0/00:08:a1:27:5e:08
    Sending on Socket/fallback
    DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 5
    DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 5
    DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 14
    DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 18
    DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 17
    DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 2
    No DHCPOFFERS received.
    No working leases in persistent database - sleeping.
    Internet Systems Consortium DHCP Client V3.0.3

    thanks a lot


    #2
    Re: lan not working after installation

    fixed the problem!!!!
    it occurs with Davicom chipsets.
    i checked the chipset using 'lspci', and followed instructions on this topic:
    http://www.ubuntuforums.org/showthread.php?t=186430

    bye

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