I am having a terrible week trying to resolve an issue with my ethernet connection. The ethernet works fine for 1 minute before I lose connection. The networks icon to the top constantly reads as connected, but I have to disconnect and reconnect by clicking 'Wired connection 1' for a few seconds/mins of connection.

• Realtek Lan Driver Update
• Realtek Wireless Lan Driver
• Realtek Ethernet Controller Driver
• Modprobe Realtek Lan Controller Driver Update
• Realtek Lan Controller

To work around this issue, I have a cron job running every minute to disconnect and reconnect with the following lines of code:

Please help. I need a more permanent solution for a steady ethernet connection.

Things I've done:

Jan 13, 2018 - I tried reinstalling Network Manager but no luck. After some Google. Product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller. Upgrade your kernel to 4.13 which contains the driver for Realtek RTL8111/8168/8411. Sudo sh -c 'echo blacklist r8169 >> /etc/modprobe.d/blacklist.conf'.

Realtek Lan Driver Update

1) Install the r8168-dkms using Synaptic.
2) Set the IPv6 settings 'Method' section to 'ignore'.
3) Changed my Internet DNS servers to 8.8.8.8,8.8.4.4...etc.
4) Change the 'MTU' to 9000.
5) Changed interface file to:auto loiface lo inet loopbackauto enp4s0iface enp4s0 inet dhcp

• => If you add new hardware you need to add driver i.e. => The modprobe command. The author is the creator of nixCraft and a seasoned sysadmin, DevOps.
• Jan 7, 2011 - 02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI. Sudo gedit /etc/modprobe.d/blacklist.conf. Remove any drivers/modules installed i had both r8169 and r8168 installed so in terminal write.

as well as for static.
6) sudo apt-get purge r8168-dkms from Ubuntu 14.04 wired connection keep disconnecting
7) Everything on https://unixblogger.com/2011/10/18/the-pain-of-an-realtek-rtl8111rtl8168-ethernet-card/
8) Install older version of r8168, then:

9) Read through pages of https://ubuntuforums dot org/archive/index.php/t-2291730.html
10) Everything on https: //ubuntuforums dot org/showthread.php?t=2248047
11) Cold booting.
12)

13) https: //nosemaj dot org/hardy-r8168
14) Test ethernet cable with other devices.
15) Crying.
16) Asked my mom.

UPDATE #1

Commands to remove:

None of these commands removed 8.044.

UPDATE #2

UPDATE #3

After trying and failing with r8168 V 8.042... I tried version 8.043.02 and had some sort of success, although we're not at the final solution yet.

UPDATE #4

UPDATE 5

It seems as though this command removed the 8.044 driver and now all that's left is the 8.043.02 driver.

1 Answer

From the comments...

1. you really do need to run r8168-dkms in your configuration

2. undo all of the changes that you've made... they didn't fix the problem, only created new ones

3. After closer review, I see that you're using the r8168-dkms (8.044.02-NAPI) for Ubuntu 17.10 (on a 16.04 system). Please install the correct version and retest.

4. In your Network GUI, you have multiple 'Wired Connection' profiles set up. They would be named Wired Connection, Wired Connection 1, Wired Connection 2, etc. Delete all except for Wired Connection.

Update #1:

Assuming that the current status is that dkms status shows r8168, 8.041.00 : added...

Note: you may have to confirm the correct values of r8168/8.041.00 (module/version) by either looking in /usr/src or /var/lib/dkms/r8168.

Should show r8168, 8.041.0 installed.

Should say 8.041.00.

Update #2:

Realtek Wireless Lan Driver

• r8168 v8.041.00 was too old for 16.04.2 (kernel 4.8.0-58)
• we're now using r8168 v8.043.02

Update #3:

We'll completely remove r8168-dkms and un-blacklist r8169 and then reinstall r8168-dkms from the Ubuntu repos.

• sudo dkms remove r8168/8.043.02 -k '$(uname -r)/$(uname -p)'
• sudo apt-get purge r8168-dkms
• cd /var/lib/dkms
• ls -al
  • should not show r8168
• cd /usr/src
• ls -al
  • should not show r8168.043.02
• find /lib -name r8168.ko
  • should not show r8168.ko
• cd /etc/modprobe.d
• ls -al r8168*
  • should show no files
• grep -i r816 *
  • edit output of grep into question as update #n
• cd
• sudo modprobe -r r8168
• sudo update-initramfs -u -k '$(uname -r)'
• stop here, ping me at @heynnema

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