after I had openSuse running on this machine without Ethernet issues, I installed Ubuntu 14.04 and ran into a weired Ethernet problem. My colleague has Ubuntu 12.04 on the same type of computer and no issues.
My problem is, that approx. on 2 out of 3 times when I boot up, the Ethernet connection would take very long to establish and then still not work (ping would say "Destination Host unreachable").
Here's the output of ethtool eth0:
Settings for eth0:
Supported ports: [ TP ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Full
Supported pause frame use: No
Supports auto-negotiation: Yes
Advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Full
Advertised pause frame use: No
Advertised auto-negotiation: Yes
Speed: 1000Mb/s
Duplex: Full
Port: Twisted Pair
PHYAD: 2
Transceiver: internal
Auto-negotiation: on
MDI-X: off (auto)
Cannot get wake-on-lan settings: Operation not permitted
Current message level: 0x00000007 (7)
drv probe link
Link detected: yes
and ethtool -i eth0:
driver: e1000e
version: 2.3.2-k
firmware-version: 0.13-4
bus-info: 0000:00:19.0
supports-statistics: yes
supports-test: yes
supports-eeprom-access: yes
supports-register-dump: yes
supports-priv-flags: no
Did someone ever have similar problems? Where should I start looking for a solution?
Thanks!
Edit 1 Here's the output of dmesg | grep eth0 on non-working state, if it helps somehow:
dmesg | grep eth0
[ 1.800540] e1000e 0000:00:19.0 eth0: registered PHC clock
[ 1.800542] e1000e 0000:00:19.0 eth0: (PCI Express:2.5GT/s:Width x1) 90:1b:0e:1b:07:79
[ 1.800543] e1000e 0000:00:19.0 eth0: Intel(R) PRO/1000 Network Connection
[ 1.800593] e1000e 0000:00:19.0 eth0: MAC: 11, PHY: 12, PBA No: FFFFFF-0FF
[ 7.018035] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 7.910448] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 7.910657] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 24.366988] e1000e: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: Rx/Tx
[ 24.366991] e1000e 0000:00:19.0 eth0: 10/100 speed: disabling TSO
[ 24.367023] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
Edit 2
So, I guess, I should do a bug report. Does someone have suggestions on which useful information and context I should collect before reporting the bug?
