Zorin OS shows Ethernet Cable Unplugged after rebooting
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I had to install a dkms package to add ethernet support to my Zorin OS (which is Ubuntu 22.04 LTS based) running on an ASUS NUC 14 Essential mini PC . This worked fine for a while but after rebooting, the ethernet connection now started showing "Cable unplugged" in the Network Settings.
I've removed the cable and plugged it back in, both on the PC and the wall. I've tried the cable directly with another PC and it works fine, so I'm sure the cable is fine.
lspci --nnk shows:
1:00.0 Ethernet controller : Realtek Semiconductor Co., Ltd. RTL8125 2.5GbE Controller [10ec:8125] (rev ff)
Kernel driver in use: r8125
Kernel modules: r8125
ifconfig shows:
enp1s0: flags=4099 mtu 1500
ether 48:21:0b:6e:ee:6c txqueuelen 1000 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
device interrupt 18
I installed the driver using the launchpad instructions here :
sudo apt install realtek-r8125-dkms
dkms status shows:
r8125/9.007.01, 6.8.0-57-generic, x86_64: installed (WARNING! Diff between built and installed module!)
realtek-r8125/9.015.00, 6.8.0-57-generic, amd64: installed
It seems that rebooting has caused some setting to change that was previously working but I'm unsure what it is. I recall that I had to add a module key that had to be entered on the first time reboot after installing the driver, but I've not been asked for that subsequently.
At this point, I'm beat. I have a nice working setup so I don't want to reinstall the OS from scratch unless absolutely necessary so any suggestions would be welcome. For now I'm using the wi-fi connection which works.
I've removed the cable and plugged it back in, both on the PC and the wall. I've tried the cable directly with another PC and it works fine, so I'm sure the cable is fine.
lspci --nnk shows:
1:00.0 Ethernet controller : Realtek Semiconductor Co., Ltd. RTL8125 2.5GbE Controller [10ec:8125] (rev ff)
Kernel driver in use: r8125
Kernel modules: r8125
ifconfig shows:
enp1s0: flags=4099 mtu 1500
ether 48:21:0b:6e:ee:6c txqueuelen 1000 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
device interrupt 18
I installed the driver using the launchpad instructions here :
sudo apt install realtek-r8125-dkms
dkms status shows:
r8125/9.007.01, 6.8.0-57-generic, x86_64: installed (WARNING! Diff between built and installed module!)
realtek-r8125/9.015.00, 6.8.0-57-generic, amd64: installed
It seems that rebooting has caused some setting to change that was previously working but I'm unsure what it is. I recall that I had to add a module key that had to be entered on the first time reboot after installing the driver, but I've not been asked for that subsequently.
At this point, I'm beat. I have a nice working setup so I don't want to reinstall the OS from scratch unless absolutely necessary so any suggestions would be welcome. For now I'm using the wi-fi connection which works.
Asked by user735142
Apr 23, 2025, 03:10 PM