Внезапно отвалилась сеть: transmit timed out

Aug  3 11:23:11 core kernel: NETDEV WATCHDOG: eth0: transmit timed out
Aug  3 11:23:47 core last message repeated 3 times
Aug  3 11:24:59 core last message repeated 2 times
Aug  3 11:27:05 core last message repeated 2 times
Aug  3 11:28:47 core last message repeated 2 times
Aug  3 11:29:53 core kernel: NETDEV WATCHDOG: eth0: transmit timed out
Aug  3 11:30:59 core kernel: NETDEV WATCHDOG: eth0: transmit timed out
Aug  3 11:32:41 core last message repeated 2 times
Aug  3 11:33:53 core kernel: NETDEV WATCHDOG: eth0: transmit timed out
Aug  3 11:33:54 core kernel: input: AT Translated Set 2 keyboard as /class/input/input1
Aug  3 11:34:59 core kernel: NETDEV WATCHDOG: eth0: transmit timed out
Aug  3 11:35:47 core kernel: NETDEV WATCHDOG: eth0: transmit timed out
Aug  3 11:37:29 core last message repeated 2 times
Aug  3 11:39:17 core last message repeated 2 times
Aug  3 11:40:05 core kernel: NETDEV WATCHDOG: eth0: transmit timed out
Aug  3 11:40:49 core kernel: r8169: eth0: link up
Aug  3 11:42:37 core kernel: NETDEV WATCHDOG: eth0: transmit timed out
Aug  3 11:43:31 core kernel: NETDEV WATCHDOG: eth0: transmit timed out

ethtool eth0
Settings for eth0:
        Supported ports: [ TP ]
        Supported link modes:   10baseT/Half 10baseT/Full
                                100baseT/Half 100baseT/Full
                                1000baseT/Full
        Supports auto-negotiation: Yes
        Advertised link modes:  10baseT/Half 10baseT/Full
                                100baseT/Half 100baseT/Full
                                1000baseT/Full
        Advertised auto-negotiation: Yes
        Speed: 1000Mb/s
        Duplex: Full
        Port: Twisted Pair
        PHYAD: 0
        Transceiver: internal
        Auto-negotiation: on
        Supports Wake-on: pumbg
        Wake-on: g
        Current message level: 0x00000033 (51)
        Link detected: yes