Ethtool reset interface ubuntu ; Access to the terminal. It allows us to modify the parameters of the devices and query the information of those devices. Ubuntu uses upstart. and you need to have a service to make the ethtool command persist in systemd/system you can add a script to specify types of WOL I highly recommend only using g (magic packet) because if you specify pumbg you are likely to get immediate reboots after This command checks for "state UP" in the 2nd interface of the "ip a" command. I even put. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. sometimes you need to kill processes that for some reason locks your interface, you can list them with lsof 1 Answer Sorted by: Reset to default 3 . Inst The ethtool is a command-line tool in Linux for managing network interface devices. com as the Managing NIC ring buffer sizes with ethtool is simple, for example: ethtool -G eth0 rx 4096 tx 4096 (Or replace eth0 with whatever interface you need to manage. I can tell you some of the ways I tried. 15-0ubuntu1_amd64 NAME ethtool - query or control network driver and hardware settings SYNOPSIS ethtool devname ethtool-h|--help ethtool You have searched for packages that names contain ethtool in all suites, all sections, and all architectures. Open a terminal window. Otherwise, you can obtain and install ethtool from most repositories. 6-k firmware-version: 0. If ethtool is not installed, follow these steps. Dies geschieht über das Programm ethtool, das erst über das Paket. Preferably without bringing down the interface I'd like to reset interface link counters; bonus points if it can be done with iproute2 tools. As an administrator, being able to view, set up, and troubleshoot interfaces is a crucial skill. As it stands now, I have to wait around 5 minutes until Ubuntu finally selects 100 Mbps as an option, or I have to use ethtool to manually set it. Although Ubuntu 20. So editing the /etc/network/interface file as below should be ok:. It also neatly integrates into the Stack Exchange Network. 0 bus-info: 0000:06:00. 0 Unported License. Also you might be able to just unbind/bind the driver. link files for all your other interfaces to rename them to the old friendly names. There are 2 interfaces involved here: To provide Its internet, I am using an android smartphone that has access to internet via its Data and it will be sharing internet with my PC (server) via USB Tethering. Surprinsgly, a search did not yield any answer on how to proceed. . In this tutorial, we learn some Chances are, the release of Ubuntu Server you’re using includes ethtool. The ethtool command enables you to query or control the network driver and hardware settings. [PATCH 4/9] net: aquantia: Enable coalescing management via ethtool interface AceLan Kao acelan. Befehl zum Installieren der Pakete: Network interfaces in Ubuntu and Linux can be managed via various terminal commands and configuration files. Results can be seen in the /var/log/messages file: Nov 22 21:36:24 nsm153 kernel: e1000: eth0: e1000_watchdog_task: NIC Link is Up 1000 Mbps Full Duplex . To solve this, either check from Windows' device manager for the PCI Vendor ID and Device ID of your ethernet card, which you can cross-reference here and see if you can find a driver for that (Vendor ID is the manufacturer, Device Monitoring Interfaces and Transceivers Using ethtool - ethtool Counter Definitions. When you execute ethtool command with a device name, it displays the following information about the ethernet device. No matter what I try, after rebooting, wake-on-lan is disabled again: Wake-on: d when checking with sudo ethtool eno1. But why is this setting reset on every startup? Is I want to set ethernet speed & duplex permanently in ubuntu 20. For some reason, ifconfig lists eth0 and eth1, although the latter RX/TX metrics remain at zero. autoneg on|off Specifies whether autonegotiation should be enabled. . 5-1ubuntu0. A command can be executed after an interface has been brought up using the post-up parameter. sudo ifconfig eth0 up. In this comprehensive guide, you‘ll learn how to leverage ethtool to diagnose problems, tune settings, and unlock the full ethtool--cable-test devname ethtool--cable-test-tdr devname [first N] [last N] [step N] [pair N] ethtool--show-tunnels devname ethtool--show-module devname ethtool--set-module devname [power-mode-policy high|auto] ethtool--get-plca-cfg devname ethtool--set-plca-cfg devname [enable on|off] [node-id N] [node-cnt N] [to-tmr N] [burst-cnt N] [burst-tmr N] ethtool--get-plca Let us see how to install ethtool to query or control network driver and hardware settings on Debian or Ubuntu Linux. 04LTS) (utils): display or change Ethernet device settings 1:5. all options » Ubuntu » Packages » focal (20. This article will outline how to install and use the ethtool Network Interface Controller Driver for Linux. I'm posting this because while googling Ubuntu 16 wol and other similar searches I came across with this post several times. This clicks through NetworkManager‘s interfaces to bounce connectivity, which resets DHCP leases, DNS, clears buffers, and more. Issue the command sudo apt-get update. 2. to disable say port named eth0 use. 1_amd64 NAME ethtool - query or control network driver and hardware settings SYNOPSIS ethtool devname ethtool-h|--help ethtool Python bindings for the ethtool kernel interface - Python 3. I installed ethtool and ran ethtool -s eth1 wol g to allow my server (ubuntu 12. yaml and make your If a network interface card (NIC) is causing problems on your Ubuntu Server, see how to use the ethtool command to troubleshoot the issue. 3. x [universe] Ubuntu will automatically try to connect my Ethernet connection at a speed of 1000 Mbps. Skip to main content. com under a Creative Commons Attribution-ShareAlike 3. I followed this guide to enable wake on lan on my Ubuntu Server 22. 04, you need to use the ip command to flush the interface address before restarting networking, otherwise changes in the interfaces file will not take effect. As you ethtool will also show you pci for an interface (bus-info:) me@ubuntu:~$ ethtool -i eth0 driver: i40e version: 1. You can also use @PaulJustin If you found a solution not already posted that fixed your problem, I recommend posting it as an answer yourself. 168. To check if the NIC driver is kernel built-in, use . Most posts either are for older versions of Ubuntu or Debian, or for other distros In order for my cell modem gateway to run in low power mode its ethernet interface must be configured to 10Mbps full duplex (not auto, even if the connected device is 10Mbps). After reading about upstart jobs, ethtool, writing an upstart script, and searching the interwebs for a better solution, I came up with this from jevinskie (you'll want to put this in a file in /etc/init):. start on started network script for interface in $(cut -d: -f1 /proc/net/dev | tail -n +3 I am running an Ubuntu Server on 14. Learn how to use ethtool to diagnose and troubleshoot network issues. ethtool . Case you want to check a different interface, just change the "2" in the command below to be the correct index position. The information includes Speed, Duplex, Auto-Negotiation, and many other parameters. Trouble is, when you do this on each slave interface that's part of a bonded interface, you mess up the bond. When the device name is the only argument to ethtool, it prints the current settings of the network device. ethtool ist ein Konfigurations- und Diagnosewerkzeug für kabelgebundene Netzwerkkarten. 16 firmware-version: 5. You can enter the ethtool commands in /etc/rc. Benefits. As said on this AskUbuntu answer you should get the NIC driver, for example with ethtool -i eth0. In this lab, we first explored the ethtool command, a powerful tool in Linux for retrieving and modifying network interface settings. Dieses muss extra nach oder während des Starts des Systems durchgeführt werden. 13-1_amd64 NAME ethtool - query or control network driver and hardware settings SYNOPSIS ethtool devname ethtool-h|--help ethtool--version Prerequisites. 4-1: amd64 arm64 armhf ppc64el riscv64 s390x Problem is that ifmetric is not permanent and I have tried using below in the /etc/network/interface but cellular totally stopped working. Sorted by: Reset to default 44 . However, some NIC drivers are built into the kernel, in which case you cannot disable the module as described in this tutorial. why should we restart the service? Restarting the service reinitializes the Explore the ethtool command in Linux, a powerful tool for retrieving and modifying network interface settings. In debian, the network configuration goes in the /etc/network/interface file. This user guide provides in-depth documentation on the Cumulus Linux installation process, system configuration and management, network solutions, and monitoring and troubleshooting recommendations. Die angeführten Ausgaben beziehen sich auf ein 10 Gbit/s onboard Intel X722 Netzwerk-Interface (eno1) eines Supermicro X11DPi-NT Mainboards (BIOS Version 3. sudo ifconfig eth0 down. d, Netplan provides different guidance on how to run post-up hook scripts that suggests using networkd-dispatcher. to re-enable the port use. root@etn-cgtqmx6:~# ifconfig eth0 Link encap:Ethernet HWaddr xx:xx:xx:xx:xx:xx UP BROADCAST RUNNING MULTICAST MTU:xxxx Metric:1 RX packets:xxx errors:0 dropped:0 overruns:0 frame:0 TX packets:1 errors:0 dropped:0 overruns:0 carrier:0 From this webpage:. 04 installation. It takes the device name (like swp1) as an argument. 04 refuses to connect to internet via ethernet. I even tried this, in case my network is managed by network manager, but I The ethtool is a command-line tool in Linux for managing network interface devices. It is not enough to enable promiscuous mode in the interface file. sudo ethtool –s [device_name] speed [10/100/1000] duplex [half/full] autoneg [on/off] When I entered the above command, the speed But the problem is within the configuration. 5. 04, Ubuntu 16. 1 Spice up. 1. local (or your distribution's equivalent) where commands are run after the current runlevel completes, but this isn't ideal. To continue, we have to know the name of the network interface card. iface eno1 inet static address 192. So let‘s get started! Deep Diving into ethtool Parameters The wiki tells us we need to run ethtool -s <interface> wol g when the interface comes up. The ethtool usually comes with any ethtool works against specific network interface names like ens160 or eth0. Thing is I’m doing it remote, so will have to wait when in the office. When my system starts, eth0 was not assigned with any of the IP addresses. Not all options are currently supported on I've found a better way that worked for me. When I use my Ethernet cord and connect it from the wall to my laptop (running windows 7) the DHCP resolves without issue. 1-1_amd64 NAME ethtool - query or control network driver and hardware settings SYNOPSIS ethtool devname ethtool-h|--help ethtool--version ethtool--cable-test devname ethtool--cable-test-tdr devname [first N] [last N] [step N] [pair N] ethtool--show-tunnels devname ethtool--show-module devname ethtool--set-module devname [power-mode-policy high|auto] ethtool--get-plca-cfg devname ethtool--set-plca-cfg devname [enable on|off] [node-id N] [node-cnt N] [to-tmr N] [burst-cnt N] [burst-tmr N] ethtool--get-plca For a quick overview you can show the statistics of an interface with, for example: rpi ~$ ip -stats -stats link show wlan0 3: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP mode DORMANT group default qlen 1000 link/ether dc:a6:32:7f:38:92 brd ff:ff:ff:ff:ff:ff RX: bytes packets errors dropped overrun mcast 25097241 Ubuntu is an open source software operating system that runs from the desktop, to the cloud, to all your internet connected things. Help answer threads with 0 replies. Exact hits Package ethtool. Whether you are trying to troubleshoot a connectivity issue, verify the link speed, or simply document the current network configuration for auditing purposes, ethtool provides a comprehensive output that covers key parameters like As ethtool is typically included with the majority of Ubuntu software releases, the program may already be installed. You can use iw instead: sudo iw dev wlp2s0 del source: Wireless Wiki at kernel. 14-3build1: amd64 arm64 armhf ppc64el riscv64 s390x jammy (22. 04 if that matters) via the Based on your distro, you can also try to restart the network service by using commands like. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their If you want to rename a interface that has already been renamed, you can create a temporary link file and trigger it, but that path is perilous. robertkwild (robert k wild) March 2, 2022, 7:21pm 5. I tried this so However, if you don't even see any ethX interfaces when you do ifconfig -a, it's a driver issue (Ubuntu isn't even seeing the interface). When I connect my Ethernet cord from the wall to my server (running Ubuntu) and power on my server, the DHCP server Provided by: ethtool_5. link, which is just wrong because Ubuntu (as of 16. Though I have tried lots of ways to set them, I am not success yet. local file because when i restart the network service, eth1 is set down. eth0 was the first port on my machine, next was eth1 etc). After running; ethtool -g eno1 Ring parameters for eno1: Pre-set maximums: RX: 4096 RX Mini: n/a RX Jumbo: n/a TX: 4096 Current hardware settings: RX: 256 RX Mini: n/a RX Jumbo: n/a TX: 256 Motivation: Knowing the current settings of your network interface is crucial for diagnosing network-related performance issues. This is where the powerful but underutilized ethtool utility comes into play. Die Einstellmöglichkeiten sind sehr umfangreich, aber auch abhängig von der verwendeten Netzwerk-Hardware und dem verwendeten Treibermodul. Its looks like below. Your answer could describe how you added the script and give the contents of the script (possibly with modifications or redaction, if you feel that is necessary), and any other information that would help someone else use your solution. I have only one network device connected to it. 04LTS) » python » python3-ethtool (µ/ý X´* ªwåCF GhÛ nÈ ; € 0ìï²ÿßIfÑJ/ŽXë *:g÷gE׈ð˜@¨ÇQ cÅŽ!ÓX Å(> 5á‰Ä_5k €5à4 % , 'çbFÆ’Ê[|«] —¥–J¬=Šøqk ´Æ Sorted by: Reset to default 81 . ip Command for Network Interface Management. Ethtool is a Network Interface Card configuration command that allows us to retrieve information and change our NIC settings. 04. No matter what I do and try, my internet connection seems to not work 90% of the time, and I don't have a wifi adapter. 13-1_amd64 NAME ethtool - query or control network driver and hardware settings SYNOPSIS ethtool devname ethtool-h|--help ethtool--version Provided by: ethtool_6. The GUI restart is simple enough for most Ubuntu desktop users to operate without any command line usage. See man ethtool(8) for details. Well, here is how: Ohh, you are right @KeeleyHoek. The following is an example of how to view CentOS 5. org > Forums > Linux Forums > Linux - Networking: How to make Ethtool setting change persistent on reboot User I'm trying to remove a network interface permanently. service 6) Bringing UP/Down Network Interface using nmtui tool? nmtui is a curses based TUI application used for interacting with Network Manager. I found those hints how to configure static IP with netplan, i. This setting is for some reason reset every startup, so I added the above command to /etc/rc. kao at canonical. I am not sure what you exactly mean by your question. How to force NIC to 100Mbit/s permanently the proper way, meaning by not changing entire Ubuntu system? ethtool would read like ethtool -s enp1s0f0 speed 100 duplex full autoneg off, but this gets lost during reboot. If you would like to use the whole or any part of this article, you need to cite this web page at Xmodulo. Stack Exchange Network. Run the following command to launch the nmtui interface. The ethtool usually comes with any I have Ubuntu 22. local. I have a a physical Linux machine running Ubuntu 12 that has been dropping thousands of RX packets. 04 0x800024cd 0. On my SBC running Ubuntu 20. I need to check the number of incoming broadcast message and limit them based on specific threshold value. Network services may have started during the runlevel and ethtool commands tend to interrupt network traffic. Summary. e. org. As a Linux administrator, having full visibility and control over your system‘s network interfaces is crucial for analyzing performance issues and optimizing connectivity. The manual page for networkd-dispatcher does not explain how to detect which Support Xmodulo. 9 I'd like to reset the RX/TX counters in ifconfig output for an interface. You can change network card speed, auto-negotiation, wake on LAN setting, duplex mode using this tool in Linux. 04 has ifupdown scripts under /etc/network/if-up. First, I used ethtool. It allows us to easily configure the network interfaces on Linux system using GUI. Currently I am only able to do so in Ubuntu (10. I read in other forums that this symptom could be . I know how to do that using ethtool, but how to preserve changes after reboot? I've tried editing interfaces file: # This file describes the network interfaces available on your system # and how to activate them. Home: Forums: Tutorials: Articles: Register: Search : LinuxQuestions. To use it effectively, you first need to determine what names match your physical ports, VLANs, In windows, this can be achieved rather easily by changing the NIC properties via Device Manager. com Tue Nov 7 01:51:58 UTC 2017. Jul 16, 2007 The ethtool command is used to display/change Ethernet adapter settings. I found you need to use ethtool command in combination with the netplan wakeonlan: true setting. 1-1_amd64 NAME ethtool - query or control network driver and hardware settings SYNOPSIS ethtool devname ethtool-h|--help ethtool--version My Ubuntu 18. Example output: driver: e1000e version: 3. I need 100Mbs speed & full of duplex. I have been surfing ethtool. The ip command is used to show and Package python3-ethtool. 5 up ethtool -s eno1 wol g to /etc/network. So editing the /etc/network/interface file as below should be ok: Ubuntu für WOL vorbereiten¶ Die meisten Kernelmodule für Netzwerkkarten aktivieren beim Hochfahren Wake-On-LAN nicht. To reset the interface counters/statistics without rebooting the machine, it is necessary to unload the network module (driver) for the network card and re-load it. Provided by: ethtool_6. 0. NVIDIA® Cumulus Linux is the first full-featured Debian bookworm-based, Linux operating system for the networking industry. What i would like to achieve is, setting the wwan0 interface metric to a Provided by: ethtool_6. So, I thought many like me would be directed here by google search for the same. Found 7 matching packages. Related ethtool-p |--identify devname [N The driver should guarantee that this command takes effect immediately, and if necessary may reset the link to cause the change to take effect. Apparently Ubuntu changed upstart for systemd, in Ubuntu 15. Provided by: ethtool_3. The Linux ethtool command allows you to view and modify network device settings, including the speed, duplex mode, auto-negotiation, and driver information. There is a lot of misleading information about how to change network names in recent versions of Ubuntu. (The aggregator IDs will in many cases not match At this point, the RX/TX and all other counters of the interface p1p2 should be successfully reset. 16-1ubuntu0. x. Visit Stack Exchange ethtool-p |--identify devname [N The driver should guarantee that this command takes effect immediately, and if necessary may reset the link to cause the change to take effect. c file and not able to get the structure which captures the data Under the hood look at ethtool source code ; Whether you aim to accelerate database access, reduce latency for real-time systems, or tune networking for heavy computational workloads, unleashing the true throughput potential of NICs with ethtool unlocks new realms of possibility. Visit Stack Exchange Sorted by: Reset to default 15 . The real manual method has been described above, but since you write you don't have DHCP, I think you rather would like to know what to do to give your box a static IP address and assign this IP address at boot time automatically. 04 which is currently up-to-date. 0 supports-statistics: yes supports-test: yes supports-eeprom-access: yes # systemctl restart network or # systemctl restart network. focal (20. Ethernet Interface settings. ethtool--cable-test devname ethtool--cable-test-tdr devname [first N] [last N] [step N] [pair N] ethtool--show-tunnels devname ethtool--show-module devname ethtool--set-module devname [power-mode-policy high|auto] ethtool--get-plca-cfg devname ethtool--set-plca-cfg devname [enable on|off] [node-id N] [node-cnt N] [to-tmr N] [burst-cnt N] [burst-tmr N] ethtool--get-plca How can I completely reset the network interfaces? All I want to do is connect to the internet. lshw and lspci are both capable of showing that information. IMPORTANT: If you are doing this through an SSH connection, it's important that you chain the commands together as shown below, because you may lose the connection to the Figure 1: Using Ubuntu‘s GUI app menu to restart networking. My understanding is that these counters get reset during a reboot but I'd like to avoid rebooting. ) Doing this live is easy. Some information points to systemd. 04 and presumably next versions too. 5). Previous message (by thread): [PATCH 3/9] net: aquantia: Reset nic statistics on interface up/down Next message (by thread): [PATCH 5/9] net: aquantia: mmio unmap was not performed on driver removal Provided by: ethtool_5. 04 installed on it and I'm trying to use this PC as a server. Use ethtool to find out your NIC module: ethtool -i eth0 ethtool--cable-test devname ethtool--cable-test-tdr devname [first N] [last N] [step N] [pair N] ethtool--show-tunnels devname ethtool--show-module devname ethtool--set-module devname [power-mode-policy high|auto] ethtool--get-plca-cfg devname ethtool--set-plca-cfg devname [enable on|off] [node-id N] [node-cnt N] [to-tmr N] [burst-cnt N] [burst-tmr N] ethtool--get-plca I do not know lubuntu, but it is based on ubuntu, which is based on debian, so a debian solution should work. ethtool--cable-test devname ethtool--cable-test-tdr devname [first N] [last N] [step N] [pair N] ethtool--show-tunnels devname ethtool--show-module devname ethtool--set-module devname [power-mode-policy high|auto] ethtool--get-plca-cfg devname ethtool--set-plca-cfg devname [enable on|off] [node-id N] [node-cnt N] [to-tmr N] [burst-cnt N] [burst-tmr N] ethtool--get-plca Cumulus Linux 5. Let‘s go through the key commands for that: 1. 04) does not use this part of systemd. I have checked in 2 computers running wifi, the 2nd listed is the cable ethernet. But when I was serching to check my NIC speed, I came to this thread, beacuse of the nature of the title. This website is made possible by minimal ads and your gracious donation via PayPal or credit card. 1. Thanks. NOTE: In this example, we assume that the NIC driver exists as a loadable kernel module. ; How to Use ethtool Command to Set Speed & Duplex of Ethernet Card. Problem. The ethtool configuration tool installed. I need the network to connect at 100 Mbps since my cable is unable to support any higher. # ethtool eth0 Settings for eth0: Supported ports: [ TP ] Supported link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100base I do not know lubuntu, but it is based on ubuntu, which is based on debian, so a debian solution should work. 04) to wake up on LAN (WOL). Please note that this article is published by Xmodulo. I had to add this line: ifconfig eth1 up ifconfig eth1 promisc in the /etc/rc. packages Skip to content. Visit Stack Exchange A boot script run after the network cards are configured should do the trick. Type the following apt-get command or apt command to Ethtool utility is used to view and change the ethernet device parameters. ethtool DEVNAME. So adding this lines would tell the os to not shutdown eth1. auto wwan0 iface wwan0 inet dhcp metric 0 I do not want to set static routes as I may be using a different sim or IP camera may end up using different IP. Thanks Eric, that’s roughly the same thing I found . I can see the server listed in the Router's Admin screen, with a dynamic IP address that has been generated through the Routers DHCP server. I kept getting dropped packets warning from Netdata. I suspect that extra eth1 entry might be causing delays during boot. 9 User Guide. Replace eth0 with the proper interface for your installation. 1_amd64 NAME ethtool - query or control network driver and hardware settings SYNOPSIS ethtool devname ethtool-h|--help ethtool Provided by: ethtool_4. 2. Autonegotiation is enabled by default, but in some network devices may have trouble with it, so you can disable it if really necessary. 4-1_amd64 NAME ethtool - query or control network driver and hardware settings SYNOPSIS ethtool devname ethtool-h|--help ethtool--version Stack Exchange Network. I'm new to both systems but this worked for me. x [universe] 0. To confirm, open a terminal window and issue the command which ethtool, and you’ll know right away if the tool is installed. 4-4 Now, after confirming that you are using the same driver and having the same issue, install the 'lspci' command: sudo apt install pciutils Monitoring Interfaces and Transceivers Using ethtool. I need to set ethtool command at start-up because my router refuse to communicate until I set my LAN card to full duplex mode. To get the name of the network interface card, just run: # ip addr 1: lo: <loopback,up,lower_up> Please be aware that starting with Ubuntu Server 16. use ifconfig to view your ethernet or NIC ports (to get port names; eg. Ubuntu / Debian Linux Install ethtool command. A user account with root privileges. 1_amd64 NAME ethtool - query or control network driver and hardware settings SYNOPSIS ethtool devname ethtool-h|--help ethtool To confirm you are using the driver e1000e use sudo ethtool -i INTERFACE_NAME, you may need to install ethtool: sudo apt install ethtool. 04, which is connected to the modem via ethernet, after boot I can run ethtool -s eth0 speed 10 duplex full to successfully establish a link The connection drop only happened when my interface, either it's the WAN or LAN interface changing speed from 100mbps to 1gbps and vice versa. Provided by: ethtool_5. 04 installed. 04LTS) (python): Python bindings for the ethtool kernel interface - Python 3. We learned about the various options available in ethtool, such as displaying the supported features, link state, Energy-Efficient Ethernet status, pause parameters, ring buffer parameters, private flags, and offload parameters. note: this disables (down) and enables (up) each port individually. Unter Debian oder Ubuntu installieren Sie ethtool via apt: apt install ethtool Beispiele . copy the default one into 02-static-ip. ethtool is a program that displays and changes Ethernet card settings such as auto-negotiation, port speed, duplex mode, and Wake-on-LAN. Ohne weitere Parameter zeigt ethtool DEVNAME unter anderem Informationen zu den unterstützen Re-negotiate the link speed and duplex settings with mii-tool or ethtool using the following commands: # mii-tool -r eth0 or # ethtool -r eth0 . I can test the ping when it change the speed, either by using ethtool or it's own, the ping resulted around 700ms from normally 0-1ms which is enough to drop connection in online gaming/video call. You can add other . At least a cleaner way. For I have a PC with Ubuntu server 18. rfbcdizd wmho oiivh hcysr ufthd vuyz jqjpze ssweuuw yjpgr cpltilt