Thread: Can't get eth0 to connect, help with log please

hey there,

have 10.04 box connected router dhcp , wireless. lathough can connect through wifi, can't connection working ethernet cable (which 1 wanna use default).
can have @ little syslog extract , tell me can't see please?

code:

jun 22 16:21:29 karldata networkmanager: <info>  activation (eth0) starting connection 'auto ethernet' jun 22 16:21:29 karldata networkmanager: <info>  (eth0): device state change: 3 -> 4 (reason 0) jun 22 16:21:29 karldata networkmanager: <info>  activation (eth0) stage 1 of 5 (device prepare) scheduled... jun 22 16:21:29 karldata networkmanager: <info>  activation (eth0) stage 1 of 5 (device prepare) started... jun 22 16:21:29 karldata networkmanager: <info>  activation (eth0) stage 2 of 5 (device configure) scheduled... jun 22 16:21:29 karldata networkmanager: <info>  activation (eth0) stage 1 of 5 (device prepare) complete. jun 22 16:21:29 karldata networkmanager: <info>  activation (eth0) stage 2 of 5 (device configure) starting... jun 22 16:21:29 karldata networkmanager: <info>  (eth0): device state change: 4 -> 5 (reason 0) jun 22 16:21:29 karldata networkmanager: <info>  activation (eth0) stage 2 of 5 (device configure) successful. jun 22 16:21:29 karldata networkmanager: <info>  activation (eth0) stage 3 of 5 (ip configure start) scheduled. jun 22 16:21:29 karldata networkmanager: <info>  activation (eth0) stage 2 of 5 (device configure) complete. jun 22 16:21:29 karldata networkmanager: <info>  activation (eth0) stage 3 of 5 (ip configure start) started... jun 22 16:21:29 karldata networkmanager: <info>  (eth0): device state change: 5 -> 7 (reason 0) jun 22 16:21:29 karldata networkmanager: <info>  activation (eth0) beginning dhcp transaction (timeout in 45 seconds) jun 22 16:21:29 karldata networkmanager: <info>  dhclient started pid 15351 jun 22 16:21:29 karldata networkmanager: <info>  activation (eth0) stage 4 of 5 (ip6 configure get) scheduled... jun 22 16:21:29 karldata networkmanager: <info>  activation (eth0) stage 3 of 5 (ip configure start) complete. jun 22 16:21:29 karldata networkmanager: <info>  activation (eth0) stage 4 of 5 (ip6 configure get) started... jun 22 16:21:29 karldata networkmanager: <info>  activation (eth0) stage 4 of 5 (ip6 configure get) complete. jun 22 16:21:29 karldata dhclient: internet systems consortium dhcp client v3.1.3 jun 22 16:21:29 karldata dhclient: copyright 2004-2009 internet systems consortium. jun 22 16:21:29 karldata dhclient: rights reserved. jun 22 16:21:29 karldata dhclient: info, please visit https://www.isc.org/software/dhcp/ jun 22 16:21:29 karldata dhclient:  jun 22 16:21:29 karldata networkmanager: <info>  dhcp: device eth0 state changed normal exit -> preinit jun 22 16:21:29 karldata dhclient: listening on lpf/eth0/00:1d:60:b2:cd:e3 jun 22 16:21:29 karldata dhclient: sending on   lpf/eth0/00:1d:60:b2:cd:e3 jun 22 16:21:29 karldata dhclient: sending on   socket/fallback jun 22 16:21:33 karldata dhclient: dhcpdiscover on eth0 255.255.255.255 port 67 interval 6 jun 22 16:21:39 karldata dhclient: dhcpdiscover on eth0 255.255.255.255 port 67 interval 6 jun 22 16:21:45 karldata dhclient: dhcpdiscover on eth0 255.255.255.255 port 67 interval 7 jun 22 16:21:52 karldata dhclient: dhcpdiscover on eth0 255.255.255.255 port 67 interval 11 jun 22 16:22:03 karldata dhclient: dhcpdiscover on eth0 255.255.255.255 port 67 interval 13 jun 22 16:22:15 karldata networkmanager: <info>  (eth0): dhcp transaction took long, stopping it. jun 22 16:22:15 karldata networkmanager: <info>  (eth0): canceled dhcp transaction, dhcp client pid 15351 jun 22 16:22:15 karldata networkmanager: <info>  activation (eth0) stage 4 of 5 (ip4 configure timeout) scheduled... jun 22 16:22:15 karldata networkmanager: <info>  activation (eth0) stage 4 of 5 (ip4 configure timeout) started... jun 22 16:22:15 karldata networkmanager: <info>  (eth0): device state change: 7 -> 9 (reason 5) jun 22 16:22:15 karldata networkmanager: <info>  marking connection 'auto ethernet' invalid. jun 22 16:22:15 karldata networkmanager: <info>  activation (eth0) failed. jun 22 16:22:15 karldata networkmanager: <info>  activation (eth0) stage 4 of 5 (ip4 configure timeout) complete. jun 22 16:22:15 karldata networkmanager: <info>  (eth0): device state change: 9 -> 3 (reason 0) jun 22 16:22:15 karldata networkmanager: <info>  (eth0): deactivating device (reason: 0). jun 22 16:22:15 karldata networkmanager: <info>  policy set 'auto thor' (wlan0) default routing , dns.

edit:
may add it's default auto connection, i've tried create 1 manually setting right ip address, gateway, etc, , attributing same ip on router mac address of card. i've tried edit manually interfaces file, no effect, or no 1 @ least. log comes moment when nothing has been changed original 10.04 installation.

, have connected laptop same cable, , connection worked straight away...

thanks!

open '/etc/network/interfaces' in text editor of choice.

make sure reads:

allow-hotplug eth0
iface eth0 inet dhcp

or

auto eth0
iface eth0 inet dhcp

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