I ran an update with update manager yesterday and when it finished my wired network connection would no longer connect to my network. The network still seems to be up and running fine (everything else on it is working okay).
Here's my system info and the results of a few commands I've tried:
Active Kernel: 4.4.0-127
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inxi -Fxz
System: Host: tonys-computer Kernel: 4.4.0-127-generic x86_64 (64 bit gcc: 5.4.0)
Desktop: Cinnamon 3.6.7 (Gtk 3.18.9) Distro: Linux Mint 18.3 Sylvia
Machine: Mobo: ASUSTeK model: Z10PE-D8 WS v: Rev 1.xx Bios: American Megatrends v: 3204 date: 12/18/2015
CPU(s): 2 Octa core Intel Xeon E5-2630 v3s (-HT-MCP-SMP-) cache: 40960 KB
flags: (lm nx sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx) bmips: 76631
clock speeds: max: 3200 MHz 1: 1375 MHz 2: 1205 MHz 3: 1200 MHz 4: 1236 MHz 5: 1200 MHz 6: 1203 MHz
7: 1285 MHz 8: 1286 MHz 9: 1278 MHz 10: 1292 MHz 11: 1388 MHz 12: 1200 MHz 13: 1200 MHz 14: 1331 MHz
15: 1257 MHz 16: 1200 MHz 17: 1388 MHz 18: 1200 MHz 19: 1259 MHz 20: 1401 MHz 21: 1595 MHz
22: 1200 MHz 23: 1260 MHz 24: 1233 MHz 25: 1200 MHz 26: 1200 MHz 27: 1200 MHz 28: 1200 MHz
29: 1234 MHz 30: 1200 MHz 31: 1201 MHz 32: 1205 MHz
Graphics: Card: NVIDIA GM204 [GeForce GTX 970] bus-ID: 03:00.0
Display Server: X.Org 1.18.4 drivers: nvidia (unloaded: fbdev,vesa,nouveau)
Resolution: 1280x1024@60.02hz, 1280x1024@60.02hz
GLX Renderer: GeForce GTX 970/PCIe/SSE2 GLX Version: 4.5.0 NVIDIA 384.130 Direct Rendering: Yes
Audio: Card-1 NVIDIA GM204 High Definition Audio Controller driver: snd_hda_intel bus-ID: 03:00.1
Card-2 Intel C610/X99 series HD Audio Controller driver: snd_hda_intel bus-ID: 00:1b.0
Sound: Advanced Linux Sound Architecture v: k4.4.0-127-generic
Network: Card-1: Intel I210 Gigabit Network Connection driver: igb v: 5.3.0-k port: 4000 bus-ID: 06:00.0
IF: enp6s0 state: down mac: <filter>
Card-2: Intel I210 Gigabit Network Connection driver: igb v: 5.3.0-k port: 3000 bus-ID: 07:00.0
IF: enp7s0 state: up speed: 100 Mbps duplex: full mac: <filter>
Drives: HDD Total Size: 12002.4GB (3.6% used) ID-1: /dev/nvme0n1 model: N/A size: 256.1GB
ID-2: /dev/sda model: WDC_WD4000F9YZ size: 4000.8GB temp: 34C
ID-3: /dev/sdb model: WDC_WD4000F9YZ size: 4000.8GB temp: 34C
ID-4: /dev/sdc model: WDC_WD4000F9YZ size: 4000.8GB temp: 34C
Partition: ID-1: / size: 109G used: 19G (19%) fs: ext4 dev: /dev/dm-0
ID-2: /boot size: 472M used: 279M (63%) fs: ext2 dev: /dev/nvme0n1p1
ID-3: swap-1 size: 137.32GB used: 0.00GB (0%) fs: swap dev: /dev/dm-1
RAID: Device-1: /dev/md0 - active components: online: sdc1[3] sdb1[1] sda1[0]
Info: raid: 5 report: 3/3 blocks: 7813771264 chunk size: 64k bitmap: true
Sensors: System Temperatures: cpu: 45.0C mobo: N/A gpu: 0.0:43C
Fan Speeds (in rpm): cpu: 0
Info: Processes: 444 Uptime: 17 min Memory: 1186.3/128824.6MB Init: systemd runlevel: 5 Gcc sys: 5.4.0
Client: Shell (bash 4.3.481) inxi: 2.2.35
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ifconfig
enp6s0 Link encap:Ethernet HWaddr 9c:5c:8e:4f:f2:a1
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
Memory:c7300000-c737ffff
enp7s0 Link encap:Ethernet HWaddr 9c:5c:8e:4f:f2:a2
inet6 addr: fe80::30e:4d41:f752:8b1a/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:211 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:38385 (38.3 KB)
Memory:c7200000-c727ffff
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:65536 Metric:1
RX packets:810 errors:0 dropped:0 overruns:0 frame:0
TX packets:810 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1
RX bytes:62244 (62.2 KB) TX bytes:62244 (62.2 KB)
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ping 192.168.1.1
connect: Network is unreachable
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dmesg | tail
[ 42.149130] NET: Registered protocol family 24
[ 42.153971] Initializing XFRM netlink socket
[ 42.155166] l2tp_core: L2TP core driver, V2.0
[ 42.156340] l2tp_netlink: L2TP netlink interface
[ 42.157621] l2tp_ppp: PPPoL2TP kernel driver, V2.0
[ 42.171017] NET: Registered protocol family 38
[ 42.824452] nvidia-modeset: Allocated GPU:0 (GPU-348a5d55-12f9-8428-8df3-a5e0fc6bd4f3) @ PCI:0000:03:00.0
[ 43.771865] mdmwebkit[2356]: segfault at 8 ip 00007f9e604aaacd sp 00007ffe272aea50 error 4 in libGL.so.384.130[7f9e603f9000+cb000]
[ 44.391160] nvidia-modeset: Freed GPU:0 (GPU-348a5d55-12f9-8428-8df3-a5e0fc6bd4f3) @ PCI:0000:03:00.0
[ 46.069925] nvidia-modeset: Allocated GPU:0 (GPU-348a5d55-12f9-8428-8df3-a5e0fc6bd4f3) @ PCI:0000:03:00.0
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dmesg | grep -i error
[ 1.387255] ERST: Error Record Serialization Table (ERST) support is initialized.
[ 10.907128] EXT4-fs (dm-0): re-mounted. Opts: errors=remount-ro
[ 43.771865] mdmwebkit[2356]: segfault at 8 ip 00007f9e604aaacd sp 00007ffe272aea50 error 4 in libGL.so.384.130[7f9e603f9000+cb000]
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route
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
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nmcli networking connectivity check
none
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nmcli general permission
PERMISSION VALUE
org.freedesktop.NetworkManager.enable-disable-network yes
org.freedesktop.NetworkManager.enable-disable-wifi yes
org.freedesktop.NetworkManager.enable-disable-wwan yes
org.freedesktop.NetworkManager.enable-disable-wimax yes
org.freedesktop.NetworkManager.sleep-wake no
org.freedesktop.NetworkManager.network-control yes
org.freedesktop.NetworkManager.wifi.share.protected yes
org.freedesktop.NetworkManager.wifi.share.open yes
org.freedesktop.NetworkManager.settings.modify.system yes
org.freedesktop.NetworkManager.settings.modify.own yes
org.freedesktop.NetworkManager.settings.modify.hostname auth
org.freedesktop.NetworkManager.settings.modify.global-dns unknown
org.freedesktop.NetworkManager.reload auth