I'm trying to make my Ethernet connection work on my Ubuntu laptop but for some reason the NIC refuses to work.
I've tried everything I know, everything I found in the internet and it still doesn't work.
Here's a list of what I tried:
- Using
ethtool to change the speed and the duplex according to the Supported link mode of the NIC and the Advertised link mode of the switch and router.
- Used three different ethernet cables connected to my switch and changed ports on the switch. Every other port and cables work.
sudo ifconfig <interface> up, sudo ip link set <interface> up but no changes.
Here is what dmesg --follow returns continuously as I run these commands:
[ 916.193910] r8169 0000:01:00.0 enp1s0: Link is Up - 100Mbps/Full - flow control off
[ 917.082174] r8169 0000:01:00.0 enp1s0: Link is Down
[ 918.678983] r8169 0000:01:00.0 enp1s0: Link is Up - 100Mbps/Full - flow control off
[ 919.564996] r8169 0000:01:00.0 enp1s0: Link is Down
[ 923.672566] r8169 0000:01:00.0 enp1s0: Link is Up - 100Mbps/Full - flow control off
[ 924.556212] r8169 0000:01:00.0 enp1s0: Link is Down
When I change config with ethtool it just says Link is Down and doesn't do anything anymore, especially when I run autoneg off.
Here's what sudo ethtool <interface> returns before any modification:
Settings for enp1s0:
Supported ports: [ TP MII ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
Supported pause frame use: Symmetric Receive-only
Supports auto-negotiation: Yes
Supported FEC modes: Not reported
Advertised link modes: 100baseT/Full
Advertised pause frame use: Symmetric
Advertised auto-negotiation: Yes
Advertised FEC modes: Not reported
Speed: Unknown!
Duplex: Unknown! (255)
Port: Twisted Pair
PHYAD: 0
Transceiver: internal
Auto-negotiation: on
MDI-X: Unknown
Supports Wake-on: pumbg
Wake-on: d
Link detected: no
Whatever speed or duplex I put it at it doesn't change anything it says Link is Down.
EDIT
I tried to install the r8168-dkms package instead but that's what it says:
sudo dpkg -i r8168-dkms_8.048.00-1_all.deb
Selecting previously unselected package r8168-dkms.
(Reading database ... 295124 files and directories currently installed.)
Preparing to unpack r8168-dkms_8.048.00-1_all.deb ...
Unpacking r8168-dkms (8.048.00-1) ...
Setting up r8168-dkms (8.048.00-1) ...
Loading new r8168-8.048.00 DKMS files...
Building for 5.15.0-56-generic
Building initial module for 5.15.0-56-generic
ERROR: Cannot create report: [Errno 17] File exists: '/var/crash/r8168-dkms.0.crash'
Error! Bad return status for module build on kernel: 5.15.0-56-generic (x86_64)
Consult /var/lib/dkms/r8168/8.048.00/build/make.log for more information.
dpkg: error processing package r8168-dkms (--install):
installed r8168-dkms package post-installation script subprocess returned error exit status 10
Errors were encountered while processing:
r8168-dkms
Output of lspci:
00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 60h-6fh) Processor Root Complex
00:00.2 IOMMU: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 60h-6fh) I/O Memory Management Unit
00:01.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Stoney [Radeon R2/R3/R4/R5 Graphics] (rev da)
00:01.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Device 15b3
00:02.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 60h-6fh) Host Bridge
00:02.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 60h-6fh) Processor Root Port
00:02.4 PCI bridge: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 60h-6fh) Processor Root Port
00:03.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 60h-6fh) Host Bridge
00:08.0 Encryption controller: Advanced Micro Devices, Inc. [AMD] Carrizo Platform Security Processor
00:09.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Carrizo Audio Dummy Host Bridge
00:09.2 Audio device: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 60h-6fh) Audio Controller
00:10.0 USB controller: Advanced Micro Devices, Inc. [AMD] FCH USB XHCI Controller (rev 20)
00:11.0 SATA controller: Advanced Micro Devices, Inc. [AMD] FCH SATA Controller [AHCI mode] (rev 4b)
00:12.0 USB controller: Advanced Micro Devices, Inc. [AMD] FCH USB EHCI Controller (rev 49)
00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller (rev 4b)
00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge (rev 11)
00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Stoney HT Configuration
00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] Stoney Address Maps
00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] Stoney DRAM Configuration
00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] Stoney Miscellaneous Configuration
00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] Stoney PM Configuration
00:18.5 Host bridge: Advanced Micro Devices, Inc. [AMD] Stoney NB Performance Monitor
01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL810xE PCI Express Fast Ethernet controller (rev 07)
02:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8821CE 802.11ac PCIe Wireless Network Adapter
