i've recently tried to connect my lenovo thinkpad with ethernet(both PCI entry, and USB ethernet via docking station).
At first it did connect, but then i changed my ISP and ever sicne my connections have been flaky, momentarily active, or just nil (the screen shows the cable is unplugged).
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things i have read about and tried:
editing /etc/NetworkManager/NetworkManager.conf and changing the managed=false
to managed=true
editing /etc/network/interfaces and adding my interfaces with
auto enp0s31f6
iface enp0s31f6 inet dhcp
editing /etc/netplan/01-network-manager-all.yaml to be just
network:
version: 2
renderer: NetworkManager
sudo apt-get upgrade
checking the cable
sudo service nework-manager restart
resetting the router
sudo ifconfig enp0s31f6 down && sudo ifconfig enp0s31f6 up
i'd love some more ideas or perhaps clarifications on whati should have done differently in the aforemntioned attempts.
p.s. when i do get momentary connections recognized they are limited to only 10 mbps even though the cable is CAT6 and the docking station i use is capable of up to 1000 mbps. this is also a major downer.
EDIT: i have been foolish and i used a network splitter without reading the actual use case for it. so the problem was i ha a splitter only on one end of the cable, so the connection iwas getting was unstable, and also got wors if two computers tried to use it at once.
i am now waiting for a network switch i ordered to arrive, and until then i removed the splitter and the connection is good. thanks to alll those who tried to help!