我有一台 Thinkpad E14，运行当前的 Manjaro。
虽然我可以正常使用 Wifi，但我的以太网突然出现问题。启用以太网时，我发现它无限期地停留在“PCI 以太网连接”上。
我在via中查了相关信息journalctl -f，但只弹出一条：
Mai 02 16:19:13 000269 dbus-daemon[1308]: [session uid=1000 pid=1308] Activating service name='org.gnome.DejaDup' requested by ':1.60' (uid=1000 pid=1648 comm="/usr/lib/deja-dup/deja-dup-monitor")
Mai 02 16:19:13 000269 dbus-daemon[1308]: [session uid=1000 pid=1308] Successfully activated service 'org.gnome.DejaDup'
Mai 02 16:19:14 000269 NetworkManager[724]: <info> [1651501154.1472] device (enp2s0): state change: ip-config -> failed (reason 'ip-config-unavailable', sys-iface-state: 'managed')
Mai 02 16:19:14 000269 NetworkManager[724]: <warn> [1651501154.1478] device (enp2s0): Activation: failed for connection 'Wired connection 1'
Mai 02 16:19:14 000269 NetworkManager[724]: <info> [1651501154.1480] device (enp2s0): state change: failed -> disconnected (reason 'none', sys-iface-state: 'managed')
Mai 02 16:19:14 000269 NetworkManager[724]: <info> [1651501154.1932] dhcp4 (enp2s0): canceled DHCP transaction
Mai 02 16:19:14 000269 NetworkManager[724]: <info> [1651501154.1953] policy: auto-activating connection 'Wired connection 1' (4bf98a2a-0d59-352a-9b65-d0f2e51545ca)
Mai 02 16:19:14 000269 NetworkManager[724]: <info> [1651501154.1965] device (enp2s0): Activation: starting connection 'Wired connection 1' (4bf98a2a-0d59-352a-9b65-d0f2e51545ca)
Mai 02 16:19:14 000269 NetworkManager[724]: <info> [1651501154.1974] device (enp2s0): state change: disconnected -> prepare (reason 'none', sys-iface-state: 'managed')
Mai 02 16:19:14 000269 NetworkManager[724]: <info> [1651501154.1984] device (enp2s0): state change: prepare -> config (reason 'none', sys-iface-state: 'managed')
Mai 02 16:19:14 000269 NetworkManager[724]: <info> [1651501154.1992] device (enp2s0): state change: config -> ip-config (reason 'none', sys-iface-state: 'managed')
Mai 02 16:19:14 000269 NetworkManager[724]: <info> [1651501154.2006] dhcp4 (enp2s0): activation: beginning transaction (timeout in 45 seconds)
我连接到交换机，交换机又连接到路由器。以前它能正常工作。我还测试了电缆，它在其他机器上也能正常工作，以前也能正常工作。重启后问题仍然存在。
如何进一步调试以及如何使以太网再次工作？