So everything in Ubuntu has been working great until networking stopped working. I've spent the better part of two days scouring for a fix with no luck. Here is my info...your help would so be appreciated.

 grep -i eth /var/log/syslog | tail 

Sep 25 16:31:59 jj-laptop NetworkManager[970]: <info> (eth0): cleaning up... 
Sep 25 16:31:59 jj-laptop NetworkManager[970]: <info> (eth0): taking down device. 
Sep 25 16:31:59 jj-laptop kernel: [23403.998837] sky2 0000:02:00.0: eth0: disabling interface 
Sep 25 16:35:54 jj-laptop NetworkManager[970]: <info> (eth0): now managed 
Sep 25 16:35:54 jj-laptop NetworkManager[970]: <info> (eth0): device state change:    unmanaged -> unavailable (reason 'managed') [10 20 2] 
Sep 25 16:35:54 jj-laptop NetworkManager[970]: <info> (eth0): bringing up device. 
Sep 25 16:35:54 jj-laptop kernel: [23413.629424] sky2 0000:02:00.0: eth0: enabling interface 
Sep 25 16:35:54 jj-laptop kernel: [23413.635703] ADDRCONF(NETDEV_UP): eth0: link is not ready 
Sep 25 16:35:54 jj-laptop NetworkManager[970]: <info> (eth0): preparing device. 
Sep 25 16:35:54 jj-laptop NetworkManager[970]: <info> (eth0): deactivating device (reason 'managed') [2] 

and then

ifconfig -a

eth0      Link encap:Ethernet  HWaddr 00:17:42:14:e9:e1  
          UP BROADCAST MULTICAST  MTU:1500  Metric:1 
          RX packets:4605 errors:0 dropped:0 overruns:0 frame:0 
          TX packets:287 errors:0 dropped:0 overruns:0 carrier:0 
          collisions:0 txqueuelen:1000 
          RX bytes:315161 (315.1 KB)  TX bytes:63680 (63.6 KB) 
          Interrupt:16 

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:13018 errors:0 dropped:0 overruns:0 frame:0 
          TX packets:13018 errors:0 dropped:0 overruns:0 carrier:0 
          collisions:0 txqueuelen:0 
          RX bytes:880484 (880.4 KB)  TX bytes:880484 (880.4 KB) 

wlan0     Link encap:Ethernet  HWaddr 00:13:02:d0:ee:13  
          BROADCAST MULTICAST  MTU:1500  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:1000 
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B) 

also

iwconfig   

lo        no wireless extensions. 

wlan0     IEEE 802.11abg  ESSID:off/any  
          Mode:Managed  Access Point: Not-Associated   Tx-Power=off   
          Retry  long limit:7   RTS thr:off   Fragment thr:off 
          Power Management:on 

eth0      no wireless extensions.

and of course

sudo lshw -C network

  *-network               
       description: Ethernet interface 
       product: 88E8055 PCI-E Gigabit Ethernet Controller 
       vendor: Marvell Technology Group Ltd. 
       physical id: 0 
       bus info: pci@0000:02:00.0 
       logical name: eth0 
       version: 12 
       serial: 00:17:42:14:e9:e1 
       size: 1Gbit/s 
       capacity: 1Gbit/s 
       width: 64 bits 
       clock: 33MHz 
       capabilities: pm vpd msi pciexpress bus_master cap_list rom ethernet physical     tp 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation 
       configuration: autonegotiation=on broadcast=yes driver=sky2 driverversion=1.30  duplex=full firmware=N/A latency=0 link=no multicast=yes port=twisted pair speed=1Gbit/s 
       resources: irq:44 memory:f0000000-f0003fff ioport:2000(size=256) memory:c0a00000-c0a1ffff 
  *-network DISABLED 
       description: Wireless interface 
       product: PRO/Wireless 3945ABG [Golan] Network Connection 
       vendor: Intel Corporation 
       physical id: 0 
       bus info: pci@0000:05:00.0 
       logical name: wlan0 
       version: 02 
       serial: 00:13:02:d0:ee:13 
       width: 32 bits 
       clock: 33MHz 
       capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless 
       configuration: broadcast=yes driver=iwl3945 driverversion=3.2.0-31-generic   firmware=15.32.2.9 latency=0 link=no multicast=yes wireless=IEEE 802.11abg 
       resources: irq:45 memory:c0100000-c0100fff 

last but not least

lsmod


Module                  Size  Used by 
nls_iso8859_1          12617  0 
nls_cp437              12751  0 
vfat                   17308  0 
fat                    55605  1 vfat 
usb_storage            39646  0 
uas                    17828  0 
dm_crypt               22528  0 
rfcomm                 38139  0 
parport_pc             32114  0 
bnep                   17830  2 
ppdev                  12849  0 
bluetooth             158438  10 rfcomm,bnep 
binfmt_misc            17292  1 
snd_hda_codec_idt      60251  1 
pcmcia                 39791  0 
joydev                 17393  0 
snd_hda_intel          32765  3 
snd_hda_codec         109562  2 snd_hda_codec_idt,snd_hda_intel 
snd_hwdep              13276  1 snd_hda_codec 
snd_pcm                80845  2 snd_hda_intel,snd_hda_codec 
snd_seq_midi           13132  0 
yenta_socket           27428  0 
snd_rawmidi            25424  1 snd_seq_midi 
snd_seq_midi_event     14475  1 snd_seq_midi 
snd_seq                51567  2 snd_seq_midi,snd_seq_midi_event 
pcmcia_rsrc            18367  1 yenta_socket 
wacom_w8001            12906  0 
irda                  185517  0 
arc4                   12473  2 
iwl3945                73111  0 
iwl_legacy             71134  1 iwl3945 
mac80211              436455  2 iwl3945,iwl_legacy 
cfg80211              178679  3 iwl3945,iwl_legacy,mac80211 
snd_timer              28931  2 snd_pcm,snd_seq 
snd_seq_device         14172  3 snd_seq_midi,snd_rawmidi,snd_seq 
dm_multipath           22710  0 
pcmcia_core            21511  3 pcmcia,yenta_socket,pcmcia_rsrc 
psmouse                96619  0 
apanel                 12718  0 
serport                12808  1 
serio_raw              13027  0 
crc_ccitt              12595  1 irda 
mac_hid                13077  0 
snd                    62064  15           snd_hda_codec_idt,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_rawmidi,snd_seq,snd_t    imer,snd_seq_device 
input_polldev          13648  1 apanel 
soundcore              14635  1 snd 
snd_page_alloc         14115  2 snd_hda_intel,snd_pcm 
lp                     17455  0 
fujitsu_laptop         18504  0 
parport                40930  3 parport_pc,ppdev,lp 
dm_raid45              76451  0 
xor                    25987  1 dm_raid45 
dm_mirror              21822  0 
dm_region_hash         16065  1 dm_mirror 
dm_log                 18193  3 dm_raid45,dm_mirror,dm_region_hash 
sdhci_pci              18324  0 
sdhci                  28241  1 sdhci_pci 
sky2                   49545  0 
i915                  414939  3 
drm_kms_helper         45466  1 i915 
drm                   197692  4 i915,drm_kms_helper 
i2c_algo_bit           13199  1 i915 
video                  19068  1 i915