This log is linked from blog . Visit blog and get more details. Mar 23 01:39:15 localhost kernel: usb 1-4: new high speed USB device using ehci_hcd and address 4 Mar 23 01:39:15 localhost kernel: usb 1-4: configuration #1 chosen from 1 choice Mar 23 01:39:16 localhost kernel: eth1: register 'asix' at usb-0000:00:13.2-4, ASIX AX88178 USB 2.0 Ethernet, 00:50:b6:05:14:da Mar 23 01:39:16 localhost kernel: usb 1-4: New USB device found, idVendor=0b95, idProduct=1780 Mar 23 01:39:16 localhost kernel: usb 1-4: New USB device strings: Mfr=1, Product=2, SerialNumber=3 Mar 23 01:39:16 localhost kernel: usb 1-4: Product: AX88178 Mar 23 01:39:16 localhost kernel: usb 1-4: Manufacturer: ASIX Elec. Corp. Mar 23 01:39:16 localhost kernel: usb 1-4: SerialNumber: 000003 Mar 23 01:39:16 localhost NetworkManager: (eth1): new Ethernet device (driver: 'usb') Mar 23 01:39:16 localhost NetworkManager: (eth1): exported as /org/freedesktop/Hal/devices/net_00_50_b6_05_14_da Mar 23 01:39:21 localhost nm-system-settings: Added default wired connection 'Auto eth1' for /org/freedesktop/Hal/devices/net_00_50_b 6_05_14_da Mar 23 01:39:21 localhost NetworkManager: (eth1): device state change: 1 -> 2 Mar 23 01:39:21 localhost NetworkManager: (eth1): bringing up device. Mar 23 01:39:21 localhost kernel: eth1: link down Mar 23 01:39:21 localhost kernel: ADDRCONF(NETDEV_UP): eth1: link is not ready Mar 23 01:39:21 localhost NetworkManager: (eth1): preparing device. Mar 23 01:39:21 localhost NetworkManager: (eth1): deactivating device (reason: 2). Mar 23 01:39:36 localhost NetworkManager: (eth1): carrier now ON (device state 2) Mar 23 01:39:36 localhost kernel: ADDRCONF(NETDEV_CHANGE): eth1: link becomes ready Mar 23 01:39:36 localhost NetworkManager: (eth1): device state change: 2 -> 3 Mar 23 01:39:36 localhost NetworkManager: Activation (eth1) starting connection 'Auto eth1' Mar 23 01:39:36 localhost NetworkManager: (eth1): device state change: 3 -> 4 Mar 23 01:39:36 localhost NetworkManager: Activation (eth1) Stage 1 of 5 (Device Prepare) scheduled... Mar 23 01:39:36 localhost NetworkManager: Activation (eth1) Stage 1 of 5 (Device Prepare) started... Mar 23 01:39:36 localhost NetworkManager: Activation (eth1) Stage 2 of 5 (Device Configure) scheduled... Mar 23 01:39:36 localhost NetworkManager: Activation (eth1) Stage 1 of 5 (Device Prepare) complete. Mar 23 01:39:36 localhost NetworkManager: Activation (eth1) Stage 2 of 5 (Device Configure) starting... Mar 23 01:39:36 localhost NetworkManager: (eth1): device state change: 4 -> 5 Mar 23 01:39:36 localhost NetworkManager: Activation (eth1) Stage 2 of 5 (Device Configure) successful. Mar 23 01:39:36 localhost NetworkManager: Activation (eth1) Stage 3 of 5 (IP Configure Start) scheduled. Mar 23 01:39:36 localhost NetworkManager: Activation (eth1) Stage 2 of 5 (Device Configure) complete. Mar 23 01:39:36 localhost NetworkManager: Activation (eth1) Stage 3 of 5 (IP Configure Start) started... Mar 23 01:39:36 localhost NetworkManager: (eth1): device state change: 5 -> 7 Mar 23 01:39:36 localhost NetworkManager: Activation (eth1) Beginning DHCP transaction. Mar 23 01:39:36 localhost dhclient: Internet Systems Consortium DHCP Client 4.0.0 Mar 23 01:39:36 localhost NetworkManager: dhclient started with pid 8464 Mar 23 01:39:36 localhost NetworkManager: Activation (eth1) Stage 3 of 5 (IP Configure Start) complete. Mar 23 01:39:36 localhost dhclient: Copyright 2004-2007 Internet Systems Consortium. Mar 23 01:39:36 localhost dhclient: All rights reserved. Mar 23 01:39:36 localhost dhclient: For info, please visit http://www.isc.org/sw/dhcp/ Mar 23 01:39:36 localhost dhclient: Mar 23 01:39:36 localhost kernel: eth1: link up, 1000Mbps, full-duplex, lpa 0xCDE1 Mar 23 01:39:36 localhost NetworkManager: DHCP: device eth1 state changed normal exit -> preinit Mar 23 01:39:36 localhost dhclient: Listening on LPF/eth1/00:50:b6:05:14:da Mar 23 01:39:36 localhost dhclient: Sending on LPF/eth1/00:50:b6:05:14:da Mar 23 01:39:36 localhost dhclient: Sending on Socket/fallback Mar 23 01:39:38 localhost avahi-daemon[2028]: Registering new address record for fe80::250:b6ff:fe05:14da on eth1.*. Mar 23 01:39:40 localhost dhclient: DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 5 Mar 23 01:39:40 localhost nss_wins[1928]: Listening on interface #41 eth1, fe80::250:b6ff:fe05:14da#123 Enabled Mar 23 01:39:45 localhost dhclient: DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 7 Mar 23 01:39:52 localhost dhclient: DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 21 Mar 23 01:40:13 localhost dhclient: DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 7 Mar 23 01:40:20 localhost dhclient: DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 11 Mar 23 01:40:22 localhost NetworkManager: Device 'eth1' DHCP transaction took too long (>45s), stopping it. Mar 23 01:40:22 localhost NetworkManager: eth1: canceled DHCP transaction, dhcp client pid 8464 Mar 23 01:40:22 localhost NetworkManager: Activation (eth1) Stage 4 of 5 (IP Configure Timeout) scheduled... Mar 23 01:40:22 localhost NetworkManager: Activation (eth1) Stage 4 of 5 (IP Configure Timeout) started... Mar 23 01:40:22 localhost NetworkManager: (eth1): device state change: 7 -> 9 Mar 23 01:40:22 localhost NetworkManager: Marking connection 'Auto eth1' invalid. Mar 23 01:40:22 localhost NetworkManager: Activation (eth1) failed. Mar 23 01:40:22 localhost NetworkManager: Activation (eth1) Stage 4 of 5 (IP Configure Timeout) complete. Mar 23 01:40:22 localhost NetworkManager: (eth1): device state change: 9 -> 3 Mar 23 01:40:22 localhost NetworkManager: (eth1): deactivating device (reason: 0).