ethernet connection makes the WiFi disable

A ethernet (Lan server) connection makes the WiFi disable automatically in windows 8.1. By switching on the WiFi manually let only WiFi to run for few moments and the WiFi goes off again. How can I fix this?


Solution 1:

In Network and Sharing Center-> Change Adapter Settings-> Advanced -> Advanced Settings, move wifi to top most position

(Advanced option can be accessed by tapping alt key)

Connection preference is in the order they are listed

https://support.microsoft.com/en-us/kb/2526067

Solution 2:

The answer about changing the connection priority appears to be wrong. That changes the priority of physical connections and wireless connections independently. That, as far as I understand, is only concerned with where to forward packets on which interface first. If there is an unknown address, broadcast, or multiple interfaces within the same subnet, this is where you tell windows which interface to send to first.

The wireless priority determines which wireless network to connect to over the other, if multiple networks that you previously connected to are available.

In Windows, historically you've always been able to keep an active LAN and wireless connection simultaneously. It's typical for System admins to turn off this feature via group policy settings as noted by chenmunka. This is purely done for security reasons.

If your PC belongs to your place of work, this is likely the case then.

==EDIT==

So it turns out I was misguided on the GPO setting. Looks like there does not exist the option of disabling wifi on a conditional basis of the LAN status being active or not.

All hits online suggest this is likely a bios feature. Any chance you can supply your exact model number?

Solution 3:

  • Press Windows+R, type "services.msc" and hit Enter
  • Search for a service related to LAN/WLAN switch, I.E. HP notebooks will have "HP LAN/WLAN/WWAN Switching UWP Service", but it could different.
  • Right click on the service, and select Properties
  • Change the startup type to Manual (or Disable).
  • Click Stop
  • Click Apply

If you cant find any related service, make this changes to "WLAN AutoConfig" service. But this is strongly not recommended.

Solution 4:

Since this comes up on my search - on (patched) 8.1 and 10: https://www.addictivetips.com/windows-tips/give-ethernet-higher-priority-over-wifi-connection-in-windows-10/

Specifically, Béla Vajda Antonin • 2 years ago Hello!

I found the solution! In Windows 10 you cannot use the GUI just PowerShell.

The key is the interface metric number. The lowest number is the first in the order. My problem was: if I connected for VPN on wired Network then the adapter get the DNS from outside because may VPN adapter metric number was higher than Ethernet adapter...

Solution:

Run an elevated PowerSell (run as administrator)

Get-NetIPInterface

Then you will see your all interfaces with all information. Check the metric numbers and check the interface index.

Set-NetIPInterface -InterfaceIndex (the number of selected interface) -InterfaceMetric (the number of metric)

This was my setting:

Set-NetIPInterface -InterfaceIndex 6 -InterfaceMetric 60

Set the wifi to the lowest index. (I can verify this works.) No GPO needed.

Solution 5:

I found a solution for me on https://www.dell.com/community/Networking-Internet-Bluetooth/Wireless-is-disabled-when-Ethernet-is-connected/td-p/4529436

"There is a service in the Windows called "Wired AutoConfig" that you need to disable to the Wi-Fi adapter do not be automatic disabled. Do it, and enable the Wi-Fi adapter, he wont be automatic desabled again."

In french I saw "Service de configuration automatique WLAN" and "Service de configuration automatique WWAN". I needed to stop the second one (Wwansvc) and it worked (on windows 10)!

SOLUTION SUMMARY (tested on Win10) :

  • Try to disable the following windows service : Wwansvc
  • Try to go in your BIOS and see if there is and option like "LAN/WLAN commutation"