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有线网络拒绝连接（以太网/Ubuntu 18.04）

tag-icon • tag-icon networking ethernet realtek
有线网络拒绝连接（以太网/Ubuntu 18.04）

收到错误消息“激活网络连接失败”

Runninglspci -nnk | grep 0200 -A3给出了这样的答案：

07:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 03)
    Subsystem: Fujitsu Technology Solutions RTL8111/8168/8411 OCI Express Gigabit Ethernet Controller [1734:118d]
    Kernel driver in us: r8169
    Kernel modules: r8169

dmesg | grep r816

[1.218395] r8169 Gigabit Ethernet driver 2.3LK-NAPI loaded
[1.218415] r8169 0000:07:00.0: can't disable ASPM; OS doesn't have ASPM control
[1.219124] r8169 0000:07:00.0 eth0: RTL8168d/8111d at 0x (ptrval), 00:26:9e:e4:e5:80, XID 081000c0 IRQ 24
[1.219127] r8169 0000:07:00.0 eth0: jumbo features [frames: 9200 bytes, tx checksumming: ko]
[1.281398] r8169 0000:07:00.0 enp7s0: renamed from eth0
[33.724226] r8169 0000:07:00.0 enp7s0: link down
[33.724249] r8169 0000:07:00.0 enp7s0: link down
[35.281479] r8169 0000:07:00.0 enp7s0: link up

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