Upon bootup the network connection appears to be connected, for several reboots, I was shortly able to ping 220.127.116.11. 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