If the WiFi is wasting all the battery, you can automatically disable WiFi when connected to LAN in Windows 10. Follow these steps to do so.
All most all laptops have WiFi built-in and most of use that WiFi to connect to the internet. Though WiFi makes it quite easy to connect to the internet, one thing that bothers most people is that the stability and quality of the said WiFi connection. That is one of the reasons why most connect their laptops to ethernet when at home or at work. Ethernet provides a solid connection and even better speeds when it comes to things like local streaming and file transfer. In fact, when I'm at my desk, I connect my laptop to the ethernet so that I can access my NAS and other connected devices.
When you connect to LAN over ethernet, the WiFi is still active in the background looking for and trying to connect to the available networks. As you can guess, this drains the laptop battery. In some cases, depending on the network priority settings, the WiFi connection may take precedence over the ethernet connection. This makes connecting to other devices a pain in the back.
So, if you are ever in these kinds of situations, you can make Windows automatically disable WiFi when connected to Ethernet. Once the WiFi is disabled, you don't have to worry about it draining the battery or colliding with the ethernet connection.
Without further ado, let me show how to disable WiFi when connected to LAN in Windows 10.
Disable WiFi When Connect to LAN
Depending on your WiFi adapter, there will be an option in the advanced settings that allows you to disable the WiFi.
1. First, disconnect from ethernet and connect to a WiFi network. This makes configuring the settings a tad bit easier. Once you've done that, right-click on the Network icon appearing in the taskbar and select "Open Network & Internet Settings" option.
2. In the Settings app, click on the "Change adapter options" option appearing on the right page.
3. As soon as you click on the option, the Control Panel window will open. Here, find your WiFi adapter, right-click on it and select the "Properties" option.
3. In the properties window, click on the "Configure" button appearing under the Connect Using section.
4. Now, go to the "Advanced" tab, select the "Disable Upon Wired Connect" option on the left panel and then select the "Enabled" option on the right panel. Click on the "Ok" button to save changes.
5. Finally, restart the system to make the changes take effect.
From now on, the WiFi will be automatically disabled when you connect to the ethernet.
If the "Disable Upon Wired Connect" option is not available then your WiFi card doesn't support this feature. If that's the case then I recommend you follow the second method. It should work with any WiFi adapter.
If the first method did not work for you then you can try changing the network priority. Now, this will not disable the WiFi. However, it will make sure that the ethernet takes precedence over the WiFi. That way, there will be no network collisions and you can enjoy the reliability and faster speeds.
I've already written a detailed article on how to change network priority in Windows. Follow that and you will be good.
That is all. I hope that helps. If you are stuck or need some help, comment below and I will try to help as much as possible.