NetworkManager won't connect to eth0

Dec 28 02:44:46 localhost NetworkManager[3053]: <info> Activation (eth0) starting connection 'Wired connection 1'
Dec 28 02:44:46 localhost NetworkManager[3053]: <info> (eth0): device state change: disconnected -> prepare (reason 'none') [30 40 0]
Dec 28 02:44:46 localhost NetworkManager[3053]: <info> Activation (eth0) Stage 1 of 5 (Device Prepare) scheduled...
Dec 28 02:44:46 localhost NetworkManager[3053]: <info> Activation (eth0) Stage 1 of 5 (Device Prepare) started...
Dec 28 02:44:46 localhost NetworkManager[3053]: <info> Activation (eth0) Stage 2 of 5 (Device Configure) scheduled...
Dec 28 02:44:46 localhost NetworkManager[3053]: <info> Activation (eth0) Stage 1 of 5 (Device Prepare) complete.
Dec 28 02:44:46 localhost NetworkManager[3053]: <info> Activation (eth0) Stage 2 of 5 (Device Configure) starting...
Dec 28 02:44:46 localhost NetworkManager[3053]: <info> (eth0): device state change: prepare -> config (reason 'none') [40 50 0]
Dec 28 02:44:46 localhost NetworkManager[3053]: <info> Activation (eth0) Stage 2 of 5 (Device Configure) successful.
Dec 28 02:44:46 localhost NetworkManager[3053]: <info> Activation (eth0) Stage 3 of 5 (IP Configure Start) scheduled.
Dec 28 02:44:46 localhost NetworkManager[3053]: <info> Activation (eth0) Stage 2 of 5 (Device Configure) complete.
Dec 28 02:44:46 localhost NetworkManager[3053]: <info> Activation (eth0) Stage 3 of 5 (IP Configure Start) started...
Dec 28 02:44:46 localhost NetworkManager[3053]: <info> (eth0): device state change: config -> ip-config (reason 'none') [50 70 0]
Dec 28 02:44:46 localhost NetworkManager[3053]: <info> Activation (eth0) Beginning DHCPv4 transaction (timeout in 45 seconds)
Dec 28 02:44:46 localhost NetworkManager[3053]: <info> dhclient started with pid 4020
Dec 28 02:44:46 localhost NetworkManager[3053]: <info> Activation (eth0) Beginning IP6 addrconf.
Dec 28 02:44:46 localhost NetworkManager[3053]: <info> Activation (eth0) Stage 3 of 5 (IP Configure Start) complete.
Dec 28 02:44:46 localhost dhclient: Internet Systems Consortium DHCP Client 4.2.2
Dec 28 02:44:46 localhost dhclient: Copyright 2004-2011 Internet Systems Consortium.
Dec 28 02:44:46 localhost dhclient: All rights reserved.
Dec 28 02:44:46 localhost dhclient: For info, please visit https://www.isc.org/software/dhcp/
Dec 28 02:44:46 localhost dhclient:
Dec 28 02:44:46 localhost NetworkManager[3053]: <info> (eth0): DHCPv4 state changed nbi -> preinit
Dec 28 02:44:46 localhost dhclient: Listening on LPF/eth0/00:1e:68:32:4a:b5
Dec 28 02:44:46 localhost dhclient: Sending on   LPF/eth0/00:1e:68:32:4a:b5
Dec 28 02:44:46 localhost dhclient: Sending on   Socket/fallback
Dec 28 02:44:46 localhost dhclient: DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 6
Dec 28 02:44:52 localhost dhclient: DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 18
Dec 28 02:45:06 localhost NetworkManager[3053]: <info> (eth0): IP6 addrconf timed out or failed.
Dec 28 02:45:06 localhost NetworkManager[3053]: <info> Activation (eth0) Stage 4 of 5 (IPv6 Configure Timeout) scheduled...
Dec 28 02:45:06 localhost NetworkManager[3053]: <info> Activation (eth0) Stage 4 of 5 (IPv6 Configure Timeout) started...
Dec 28 02:45:06 localhost NetworkManager[3053]: <info> Activation (eth0) Stage 4 of 5 (IPv6 Configure Timeout) complete.
Dec 28 02:45:10 localhost dhclient: DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 14
Dec 28 02:45:24 localhost dhclient: DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 10
Dec 28 02:45:31 localhost NetworkManager[3053]: <warn> (eth0): DHCPv4 request timed out.
Dec 28 02:45:31 localhost NetworkManager[3053]: <info> (eth0): canceled DHCP transaction, DHCP client pid 4020
Dec 28 02:45:31 localhost NetworkManager[3053]: <info> Activation (eth0) Stage 4 of 5 (IPv4 Configure Timeout) scheduled...
Dec 28 02:45:31 localhost NetworkManager[3053]: <info> Activation (eth0) Stage 4 of 5 (IPv4 Configure Timeout) started...
Dec 28 02:45:31 localhost NetworkManager[3053]: <info> (eth0): device state change: ip-config -> failed (reason 'ip-config-unavailable') [70 120 5]
Dec 28 02:45:31 localhost NetworkManager[3053]: <info> Marking connection 'Wired connection 1' invalid.
Dec 28 02:45:31 localhost NetworkManager[3053]: <warn> Activation (eth0) failed.
Dec 28 02:45:31 localhost NetworkManager[3053]: <info> Activation (eth0) Stage 4 of 5 (IPv4 Configure Timeout) complete.
Dec 28 02:45:31 localhost NetworkManager[3053]: <info> (eth0): device state change: failed -> disconnected (reason 'none') [120 30 0]
Dec 28 02:45:31 localhost NetworkManager[3053]: <info> (eth0): deactivating device (reason 'none') [0]