12.10: Ethernet tries connecting, but fails

[DuckZoro]

Hi, coming here last time fixed the wifi, so hoping some one here can also help me get my ethernet problems fixed

In my present location (at work) my ubuntu machine can't connect through ethernet. I can see it, meaning that the ethernet connection is listed as an option when I plug in the cable, however the computer never manages to make the connection and eventually gives up (after perhaps 30-60 seconds). I have no problems connecting to the ethernet at home. Nor is my old computer (also ubuntu, but 12.04) having any problems with this ethernet.

It is my impression that the following information is called for:

ifconfig:

    eth0      Link encap:Ethernet  HWaddr b8:88:e3:09:5b:5f  
              inet6 addr: fe80::ba88:e3ff:fe09:5b5f/64 Scope:Link
              UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
              RX packets:28603 errors:0 dropped:504 overruns:0 frame:0
              TX packets:285 errors:0 dropped:0 overruns:0 carrier:0
              collisions:0 txqueuelen:1000 
              RX bytes:3659141 (3.6 MB)  TX bytes:74547 (74.5 KB)
              Interrupt:16 

    eth1      Link encap:Ethernet  HWaddr 08:ed:b9:f2:6d:0d  
              inet addr:10.185.116.115  Bcast:10.185.255.255  Mask:255.255.0.0
              inet6 addr: fe80::aed:b9ff:fef2:6d0d/64 Scope:Link
              UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
              RX packets:17746 errors:1 dropped:0 overruns:0 frame:11381
              TX packets:5773 errors:13 dropped:0 overruns:0 carrier:0
              collisions:0 txqueuelen:1000 
              RX bytes:8212111 (8.2 MB)  TX bytes:798195 (798.1 KB)
              Interrupt:17 

    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:1570 errors:0 dropped:0 overruns:0 frame:0
              TX packets:1570 errors:0 dropped:0 overruns:0 carrier:0
              collisions:0 txqueuelen:0 
              RX bytes:174187 (174.1 KB)  TX bytes:174187 (174.1 KB)

lshw -C network:

 WARNING: you should run this program as super-user.
      *-network               
           description: Ethernet interface
           product: NetLink BCM57785 Gigabit Ethernet PCIe
           vendor: Broadcom Corporation
           physical id: 0
           bus info: pci@0000:02:00.0
           logical name: eth0
           version: 10
           serial: b8:88:e3:09:5b:5f
           capacity: 1Gbit/s
           width: 64 bits
           clock: 33MHz
           capabilities: bus_master cap_list rom ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
           configuration: autonegotiation=on broadcast=yes driver=tg3 driverversion=3.123 firmware=sb latency=0 multicast=yes port=twisted pair
           resources: irq:16 memory:b3430000-b343ffff memory:b3440000-b344ffff memory:b3450000-b34507ff
      *-network
           description: Wireless interface
           product: BCM43228 802.11a/b/g/n
           vendor: Broadcom Corporation
           physical id: 0
           bus info: pci@0000:03:00.0
           logical name: eth1
           version: 00
           serial: 08:ed:b9:f2:6d:0d
           width: 64 bits
           clock: 33MHz
           capabilities: bus_master cap_list ethernet physical wireless
           configuration: broadcast=yes driver=wl0 driverversion=5.100.82.112 ip=10.185.116.115 latency=0 multicast=yes wireless=IEEE 802.11
           resources: irq:17 memory:b3500000-b3503fff
    WARNING: output may be incomplete or inaccurate, you should run this program as super-user.

I have no idea why there seems to be two ethernet connections listed.

Thanks in advance, I hope someone will have some suggestions

EDIT - additional information:

I tried looking at the end of /var/log/kern.lo, and got the following:

Nov 21 14:55:36 kaare-Aspire-V3-571G kernel: [ 406.122713] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
Nov 21 14:55:47 kaare-Aspire-V3-571G kernel: [ 416.873347] tg3 0000:02:00.0: eth0: Link is up at 1000 Mbps, full duplex
Nov 21 14:55:47 kaare-Aspire-V3-571G kernel: [ 416.873353] tg3 0000:02:00.0: eth0: Flow control is off for TX and off for RX
Nov 21 14:55:47 kaare-Aspire-V3-571G kernel: [ 416.873356] tg3 0000:02:00.0: eth0: EEE is disabled
Nov 21 14:55:47 kaare-Aspire-V3-571G kernel: [ 416.874342] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready

while this was going on, the "quarter-circle" icon in the top corner was doing the "wave" animation, meaning that it was working, and at some point a message came up saying "Wired Network // Disconnected" (in two lines).
Does that help anyone?

[DuckZoro]

I should embarass myself by revealing the solution:

apparently new hardware has to be registered at my job (using the macaddress), and until that happens it's not allowed to connect. So problem solved, and wasn't caused by Ubuntu.