The problem is that the NIC drops out intermittently every few minutes.
Similar questions have been answered on this problem, but the answers involve changing settings in Windows.
This computer has Ubuntu 20.04.3 LTS and nothing else. I tried a different computer running Ubuntu 20.04.3 LTS on the same network drop and did not have this problem.
I also tried running a different Debian distro on this computer and had the same problem.
The switch should be auto-negotiate, but makes me wonder because the speed is showing 10Mbps and not 100Mbps.
Output of sudo lshw -C network:
*-network
description: Ethernet interface
product: Ethernet Connection I217-LM
vendor: Intel Corporation
physical id: 19
bus info: pci@0000:00:19.0
logical name: eno1
version: 04
serial: 64:00:6a:92:a3:89
size: 10Mbit/s
capacity: 1Gbit/s
width: 32 bits
clock: 33MHz
capabilities: pm msi bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=e1000e driverversion=5.11.0-27-generic duplex=full firmware=0.13-4 ip=192.168.1.110 latency=0 link=yes multicast=yes port=twisted pair speed=10Mbit/s
resources: irq:27 memory:f7c00000-f7c1ffff memory:f7c3d000-f7c3dfff ioport:f080(size=32)
