Ethernet keeps disconnecting

Good day! I'm Raniel, a Microsoft user like you. I understand your frustration regarding this issue and I'll do my best to help.

Kindly reset your DNS cache and reinstall your network adapter to troubleshoot the issue:

1. On the search bar, type "command prompt" and select Run as administrator
2. Type the following commands and press Enter after each command

ipconfig /flushdns

nbtstat -R

nbtstat -RR

netsh int reset all

netsh int ip reset

netsh winsock reset

3. Once done, type "devmgmt. msc" on the command prompt window to open Device Manager
4. Expand Network adapters > right click on your network adapter and select Uninstall device > the Delete the driver software for this device check box > Uninstall.
5. Perform a clean boot (this should also reinstall your network adapter). Please see https://support.microsoft.com/help/929135/how-t... (You may temporarily disable your firewall and antivirus before your proceed with the next steps)
6. Double-check if your machine doesn't have any pending security patches: Kindly go to Start > Settings > Update & Security > Windows Update > Check for Updates.
7. Go back to Device Manager. Click on Actions and select scan for hardware changes, then check again

Another option is to perform a network reset:

1. Go to Start > Settings > Network & Internet > Status
2. On the right pane of the Window, look for "Network Reset" and click on it, then follow the procedure

You may also refer to the additional steps on this guide to further troubleshoot your issue: https://support.microsoft.com/help/10741/window...

I hope this helps. Good luck!

Hiya, thanks for the advice!

I followed both steps, the only issue I came across was "netsh int reset all" could not be executed as the command could not be found, but everything else went smoothly.

On the clean boot, the ethernet was connected, but after another restart is suddenly disconnected again. I've just plugged the cable into a different port on my router but nothing has changed. Even after the network reset, I'm still stuck on WiFi.

Any other tips??

Hi MC_88,

Apologies if the suggested methods didn't work for you.

Since the issue persist, kindly perform a repair install of your Windows which fixes the broken system files on your machine.

1. Download the media creation tool here: https://www.microsoft.com/software-download/win... (click on "Download tool now") and wait for the download to finish
2. Temporarily disable your firewall/antivirus, then open the tool and select the option "Upgrade this PC now".
3. Wait until your machine goes to the process of repair install. There should be no worries in performing it since you will select the option to keep your files during the process.

You may also look into the Windows 10 recovery options(see "Reset your PC"): https://support.microsoft.com/help/12415/window...

Note: ensure to have a backup of your files

Please let me know how it goes. Thank you.

Were you ever able to get this resolved as I am experiencing the same issue?

I have the same issue on my Dell XPS 15 laptop (which worked normally for many months after I set it up). I've ruled out all hardware culprits (Dell even swapped in a new motherboard). I've done every last suggestion in this post and all other tutorials I've found about Ethernet disconnects and "default gateway not available" errors (including a repair install of Windows 11 Pro). My wi-fi connection is fine, but all of a sudden after six months, my laptop cannot maintain a stable Ethernet connection. It disconnects after a few minutes. Sometimes it spontaneously reconnects for a little while before disconnecting yet again. If I remove the Ethernet cable and reconnect it, that will usually restore the connection for a short time. The problem happens whether IPV4 is enabled, IPV6, or both. The only option I have not tried is the nuclear one: a clean reinstall of W11.