This tutorial will show you how to turn on or off use cellular whenever Wi-Fi is poor in Windows 11.
Some Windows 11 devices have a SIM card or eSIM in them that lets you connect to a cellular data network (ex: 5G), so you can get online in more places by using a cellular signal.
If your Windows 11 device doesn’t have a SIM card or eSIM, you can still connect to a cellular network by plugging in an external cellular device (also called a cellular modem or mobile broadband device). Either way, you must have a data plan from a mobile operator (ex: AT&T, T-Mobile, etc...) to connect.
Reference:
Cellular settings in Windows - Microsoft Support
Learn how to find cellular settings on your Windows PC and change them if you need to.

Starting with Windows 11 version 22H2 KB5030310 Build 22621.2361, Microsoft has added a new toggle in Settings to control whether to use cellular whenever Wi-Fi is available but poor.
Sometimes you might be connected to a slower Wi-Fi network, or you might be in an area where using cellular data would be faster than Wi-Fi. In cases like this, Windows can connect you to the best network based on your current location if Use cellular whenever Wi-Fi is poor is turned on.
When cellular data is used, it will use data from your data plan and you may incur charges.
Contents
- Option One: Turn On or Off Use Cellular whenever Wi-Fi is Poor in Settings
- Option Two: Turn On or Off Use Cellular whenever Wi-Fi is Poor using REG file
1 Open Settings (Win+I).
2 Click/tap on Network & internet on the left side, and click/tap on Cellular on the right side. (see screenshot below)
3 Turn On (default) or Off Use cellular whenever Wi-Fi is poor for what you want. (see screenshot below)
4 You can now close Settings if you like.
You must be signed in as administrator to use this option.
1 Do step 2 (on) or step 3 (off) below for what you want.
2 Turn On Use Cellular when Wi-Fi is Poor
This is the default setting
A) Click/tap on the Download button below to download the file below, and go to step 4 below.
Turn_ON_use_cellular_when_Wi-Fi_is_poor.reg
Download
(Contents of REG file for reference)
Code:
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\WcmSvc\CellularFailover]
"AllowFailover"=dword:00000002
3 Turn Off Use Cellular when Wi-Fi is Poor
A) Click/tap on the Download button below to download the file below, and go to step 4 below.
Turn_OFF_use_cellular_when_Wi-Fi_is_poor.reg
Download
(Contents of REG file for reference)
Code:
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\WcmSvc\CellularFailover]
"AllowFailover"=dword:00000000
4 Save the REG file to your desktop.
5 Double click/tap on the downloaded REG file to merge it.
6 When prompted, click/tap on Run, Yes (UAC), Yes, and OK to approve the merge.
7 You can now delete the downloaded REG file if you like.
That's it,
Shawn Brink
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