Linux Mint 20.1 on Dell Latitude E7470

[galtline]

I have installed the driver and I still cannot get the Ethernet Lan to Function. It says connecting and than goes to cable unplugged.

Error log:
dmesg | grep e1000e
[ 1.259210] e1000e: loading out-of-tree module taints kernel.
[ 1.270963] e1000e: module verification failed: signature and/or required key missing - tainting kernel
[ 1.272637] e1000e: Intel(R) PRO/1000 Network Driver - 3.8.4-NAPI
[ 1.272637] e1000e: Copyright(c) 1999 - 2020 Intel Corporation.
[ 1.274033] e1000e 0000:00:1f.6: Interrupt Throttling Rate (ints/sec) set to dynamic conservative mode
[ 1.368541] e1000e 0000:00:1f.6 0000:00:1f.6 (uninitialized): registered PHC clock
[ 1.452371] e1000e 0000:00:1f.6 eth0: (PCI Express:2.5GT/s:Width x1) 18:db:f2:55:f9:6b
[ 1.452372] e1000e 0000:00:1f.6 eth0: Intel(R) PRO/1000 Network Connection
[ 1.452455] e1000e 0000:00:1f.6 eth0: MAC: 12, PHY: 12, PBA No: FFFFFF-0FF
[ 1.453314] e1000e 0000:00:1f.6 enp0s31f6: renamed from eth0
[ 25.418348] e1000e 0000:00:1f.6 enp0s31f6: NIC Link is Up 100 Mbps Full Duplex, Flow Control: None
[ 25.418351] e1000e 0000:00:1f.6 enp0s31f6: 10/100 speed: disabling TSO
[ 26.217252] e1000e 0000:00:1f.6 enp0s31f6: NIC Link is Down
[ 27.956536] e1000e 0000:00:1f.6 enp0s31f6: NIC Link is Up 100 Mbps Full Duplex, Flow Control: None
[ 27.956540] e1000e 0000:00:1f.6 enp0s31f6: 10/100 speed: disabling TSO
[ 28.765213] e1000e 0000:00:1f.6 enp0s31f6: NIC Link is Down
[ 30.758549] e1000e 0000:00:1f.6 enp0s31f6: NIC Link is Up 100 Mbps Full Duplex, Flow Control: None
[ 30.758551] e1000e 0000:00:1f.6 enp0s31f6: 10/100 speed: disabling TSO
[ 31.573315] e1000e 0000:00:1f.6 enp0s31f6: NIC Link is Down
[ 44.279560] e1000e 0000:00:1f.6 enp0s31f6: NIC Link is Up 100 Mbps Full Duplex, Flow Control: None
[ 44.279562] e1000e 0000:00:1f.6 enp0s31f6: 10/100 speed: disabling TSO
[ 45.041075] e1000e 0000:00:1f.6 enp0s31f6: NIC Link is Down

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System: Kernel: 5.4.0-67-generic x86_64 bits: 64 compiler: gcc v: 9.3.0 Desktop: Cinnamon 4.8.6
wm: muffin dm: LightDM Distro: Linux Mint 20.1 Ulyssa base: Ubuntu 20.04 focal
Machine: Type: Laptop System: Dell product: Latitude E7470 v: N/A serial: Chassis:
type: 9 serial:
Mobo: Dell model: 0T6HHJ v: A00 serial: UEFI [Legacy]: Dell v: 1.27.3
date: 01/07/2021

Network: Device-1: Intel Ethernet I219-LM vendor: Dell Latitude E7470 driver: e1000e
v: 3.8.4-NAPI port: f040 bus ID: 00:1f.6 chip ID: 8086:156f
IF: enp0s31f6 state: down mac:
Device-2: Intel Wireless 8260 driver: iwlwifi v: kernel port: f040 bus ID: 01:00.0
chip ID: 8086:24f3
IF: wlp1s0 state: up mac:
IF-ID-1: virbr0 state: down mac:
IF-ID-2: virbr0-nic state: down mac: