Yesterday I installed the latest version of Ubuntu on an old working computer (At.XP2200/32bit). Unfortunately, the network connection of the PC is not working and I have no clue why.
During the installation, there were no problems. The computer has connected via the LAN card (DHCP) to the home network, and even downloaded updates.
In Ubuntu itself, the network card, which is also detected, is unable to connect to the network. (In the network settings it says: There is no network cable connected)
The network manager even says that the connection was already being used once.
The green light of the LAN card lights up. The LIGHT of the network connection to the router is also lit green, but there is no activity (ACT).
In the router-menu it can be read that the network card of the computer had already been connected to the network once (name / MAC address is displayed).
If you start from the Ubuntu Live CD, the link / Internet works without problems.
Deleting the connection or a manual IP configuration did not work.