Lenovo with Ubuntu 20.04.2 LTS not connecting to Ethernet after upgrade

I did an apt-get upgrade, and since then the server doesn't connect to ethernet anymore. I tried some suggestions I found on this site, but to no avail unfortunately.

Here is the output of ifconfig

docker0: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
    inet 172.17.0.1  netmask 255.255.0.0  broadcast 172.17.255.255
    ether 02:42:57:1b:46:de  txqueuelen 0  (Ethernet)
    RX packets 0  bytes 0 (0.0 B)
    RX errors 0  dropped 0  overruns 0  frame 0
    TX packets 0  bytes 0 (0.0 B)
    TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

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 4747  bytes 760920 (760.9 KB)
    RX errors 0  dropped 0  overruns 0  frame 0
    TX packets 4747  bytes 760920 (760.9 KB)
    TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

wlo1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
    inet 192.168.0.69  netmask 255.255.255.0  broadcast 192.168.0.255
    inet6 fe80::6e6b:261a:f00c:b113  prefixlen 64  scopeid 0x20<link>
    ether 34:2e:b7:23:6e:50  txqueuelen 1000  (Ethernet)
    RX packets 34732  bytes 8050182 (8.0 MB)
    RX errors 0  dropped 0  overruns 0  frame 0
    TX packets 16165  bytes 32896840 (32.8 MB)
    TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

ztbtoydvrk: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 2800
    inet 10.147.20.129  netmask 255.255.255.0  broadcast 10.147.20.255
    inet6 fe80::2495:1bff:fe92:9d24  prefixlen 64  scopeid 0x20<link>
    ether 5a:a8:c9:45:d0:b7  txqueuelen 1000  (Ethernet)
    RX packets 89  bytes 5992 (5.9 KB)
    RX errors 0  dropped 0  overruns 0  frame 0
    TX packets 261  bytes 31592 (31.5 KB)
    TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

Here is the output of lshw -C network:

 *-network:0               
   description: Wireless interface
   product: Cannon Point-LP CNVi [Wireless-AC]
   vendor: Intel Corporation
   physical id: 14.3
   bus info: pci@0000:00:14.3
   logical name: wlo1
   version: 30
   serial: 34:2e:b7:23:6e:50
   width: 64 bits
   clock: 33MHz
   capabilities: pm msi pciexpress msix bus_master cap_list ethernet physical wireless
   configuration: broadcast=yes driver=iwlwifi driverversion=5.11.0-25-generic firmware=46.6bf1df06.0 9000-pu-b0-jf-b0- ip=192.168.0.69 latency=0 link=yes multicast=yes wireless=IEEE 802.11
   resources: irq:16 memory:a123c000-a123ffff
 *-network:1 UNCLAIMED
   description: Ethernet controller
   product: Ethernet Connection (6) I219-V
   vendor: Intel Corporation
   physical id: 1f.6
   bus info: pci@0000:00:1f.6
   version: 30
   width: 32 bits
   clock: 33MHz
   capabilities: pm msi cap_list
   configuration: latency=0
   resources: memory:a1200000-a121ffff
*-network
   description: Ethernet interface
   physical id: 2
   logical name: ztbtoydvrk
   serial: 5a:a8:c9:45:d0:b7
   size: 10Mbit/s
   capabilities: ethernet physical
   configuration: autonegotiation=off broadcast=yes driver=tun driverversion=1.6 duplex=full ip=10.147.20.129 link=yes multicast=yes port=twisted pair speed=10Mbit/s

the output of lspci -nn:

00:00.0 Host bridge [0600]: Intel Corporation Coffee Lake HOST and DRAM Controller [8086:3e34] (rev 0c)
00:02.0 VGA compatible controller [0300]: Intel Corporation UHD Graphics 620 (Whiskey Lake) [8086:3ea0] (rev 02)
00:04.0 Signal processing controller [1180]: Intel Corporation Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor Thermal Subsystem [8086:1903] (rev 0c)
00:08.0 System peripheral [0880]: Intel Corporation Xeon E3-1200 v5/v6 / E3-1500 v5 / 6th/7th/8th Gen Core Processor Gaussian Mixture Model [8086:1911]
00:12.0 Signal processing controller [1180]: Intel Corporation Cannon Point-LP Thermal Controller [8086:9df9] (rev 30)
00:14.0 USB controller [0c03]: Intel Corporation Cannon Point-LP USB 3.1 xHCI Controller [8086:9ded] (rev 30)
00:14.2 RAM memory [0500]: Intel Corporation Cannon Point-LP Shared SRAM [8086:9def] (rev 30)
00:14.3 Network controller [0280]: Intel Corporation Cannon Point-LP CNVi [Wireless-AC] [8086:9df0] (rev 30)
00:16.0 Communication controller [0780]: Intel Corporation Cannon Point-LP MEI Controller #1 [8086:9de0] (rev 30)
00:1d.0 PCI bridge [0604]: Intel Corporation Cannon Point-LP PCI Express Root Port #9 [8086:9db0] (rev f0)
00:1d.4 PCI bridge [0604]: Intel Corporation Cannon Point-LP PCI Express Root Port #13 [8086:9db4] (rev f0)
00:1f.0 ISA bridge [0601]: Intel Corporation Cannon Point-LP LPC Controller [8086:9d84] (rev 30)
00:1f.3 Audio device [0403]: Intel Corporation Cannon Point-LP High Definition Audio Controller [8086:9dc8] (rev 30)
00:1f.4 SMBus [0c05]: Intel Corporation Cannon Point-LP SMBus Controller [8086:9da3] (rev 30)
00:1f.5 Serial bus controller [0c80]: Intel Corporation Cannon Point-LP SPI Controller [8086:9da4] (rev 30)
00:1f.6 Ethernet controller [0200]: Intel Corporation Ethernet Connection (6) I219-V [8086:15be] (rev 30)
02:00.0 Non-Volatile memory controller [0108]: Samsung Electronics Co Ltd NVMe SSD Controller SM981/PM981/PM983 [144d:a808]

Docker installed on that machine, and it's configured as part of a Zerotier network. Since I enabled the WiFi connection that seems to work fine. I tried editing /etc/netplan/ethernet.yalm to bypass the networkmanagement, but that didn't fix it.

I think the problem is the driver of the ethernet card that didn't make it through the upgrade. Does anybody know a solution?