Upon bootup the network connection appears to be connected, for several reboots, I was shortly able to ping 8.8.8.8. However, I'm not longer able to do this. Then after logging in (<30 seconds) the network manager says the cable is disconnected. Unplugging and re-plugging the cable does not change this status.

The wireless connection is working.

I have previously used the wired connection in older versions of ubuntu (16.10 & 16.04) on this laptop, although I haven't tested them recently.

The network cable works with other computers.

The NIC device is a BCM5762. 

Here is the output of ifconfig

```
    enp1s0: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
        ether 40:b0:34:09:9a:c0  txqueuelen 1000  (Ethernet)
        RX packets 91  bytes 54152 (54.1 KB)
        RX errors 0  dropped 1  overruns 0  frame 0
        TX packets 146  bytes 32104 (32.1 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
        device interrupt 36  
    lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 1000  (Local Loopback)
        RX packets 294  bytes 23870 (23.8 KB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 294  bytes 23870 (23.8 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

wlp2s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 10.87.252.202  netmask 255.255.0.0  broadcast 10.87.255.255
        inet6 fe80::3260:ab36:9b89:9e58  prefixlen 64  scopeid 0x20<link>
        ether 7c:b0:c2:4e:13:d0  txqueuelen 1000  (Ethernet)
        RX packets 1247  bytes 1208923 (1.2 MB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 881  bytes 160559 (160.5 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

```

Here is the output of lshw -C network

```
  *-network                 
       description: Ethernet interface
       product: NetXtreme BCM5762 Gigabit Ethernet PCIe
       vendor: Broadcom Limited
       physical id: 0
       bus info: pci@0000:01:00.0
       logical name: enp1s0
       version: 10
       serial: 40:b0:34:09:9a:c0
       capacity: 1Gbit/s
       width: 64 bits
       clock: 33MHz
       capabilities: pm vpd msi msix pciexpress bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=tg3 driverversion=3.137 firmware=sb latency=0 link=no multicast=yes port=twisted pair
       resources: irq:36 memory:e0820000-e082ffff memory:e0810000-e081ffff memory:e0800000-e080ffff
  *-network
       description: Wireless interface
       product: Wireless 7265
       vendor: Intel Corporation
       physical id: 0
       bus info: pci@0000:02:00.0
       logical name: wlp2s0
       version: 59
       serial: 7c:b0:c2:4e:13:d0
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=iwlwifi driverversion=4.15.0-23-generic firmware=29.1044073957.0 ip=10.87.252.202 latency=0 link=yes multicast=yes wireless=IEEE 802.11
       resources: irq:47 memory:e0d00000-e0d01fff

```