Table of Contents
This practical guide walks through how to many People Use Wifi. It organizes the required steps, settings, and checks so you can complete the task with fewer mistakes.
Wi-Fi networks are widely used today because of their superior feature of allowing wireless internet connection and helping many people use wifi at the same time. However, there may be times when the network system is unusually slow due to too many people accessing it at the same time. to control who is using your Wi-Fi and how to block wifi users, Wireless Network Watcher Is a great solution right now.
After using Wireless Network Watcher To know who is using your wifi , log in to the modem and proceed to Block the MAC or change the modem password So they cannot access.
If you find that the speed and wifi signal in your home is weak, please review the article Increase wifi signal , try following those 9 ways, the wifi signal will definitely increase stronger.
How to Block Wifi on Phone
If you don't have a computer and want to Block wifi from your phone, it's very simple , we have instructions for both iPhone and Android devices, you can see:
1. Block Wi-Fi users without software (newly updated)
Note: If you do not use software to block others from using wifi, to block wifi users with the steps below, you need to have a little skill or have managed your home modem before, you will know when you open the wifi section. Administer the modem under the path 192.168.1.1 Or 192.168.0.1 (or depending on your device). There will be a section called IP & MAC Binding (depending on the modem, the name will be different but it will generally be related to MAC). >> There will be a MAC filtering section or a feature similar to Binding Settings , this is a feature that allows Wi-Fi access with pre-declared MAC addresses.
In this section, a list of all accessing IPs with MAC addresses appears. What you need to do is enable this feature by clicking ARP Binding Enable .
Next, filter the list, find out which IP address your phone or laptop corresponds to, keep the remaining devices you don't know, check them and select Delete To delete them, like so. will block Wi-Fi users. If someone wants access and you allow it, just Add new MAC address. 
Block Wifi Users, Prevent Wifi Theft
Step 1 : Download and install Wireless Network Watcher on the computer. You can download a newer version of Wireless Network Watcher Step 2 : Wireless Network Watcher wifi management program will scan all computers connected to the network then list IP address information, Hostname. from the official provider you will know which devices are connected to your Wi-Fi network, then block the wifi connection

Check Who Is Using Wifi with Wireless Network Watcher
Step 3 : Set the scanning interval to know if anyone is accessing your Wi-Fi network during the scanning interval. To do this, open Options -> Advanced options . In the Background scan interval Section, you enter the amount of time the program automatically scans again if someone connects to the program and will notify you then whether or not someone is using the temple's Wi-Fi network. You need to block wifi usage

How to Block Devices Connecting to Wifi FPT, VNPT, Viettel
Step 4:
If someone is using your home's wifi, either You have not set a password for the wifi modem Or you Have revealed the Modem's wifi password. In this case, you need to change the wifi password regularly and periodically to protect it. more secret
The second solution , if you are technically savvy or just want to prevent some people from using wifi, is by setting up allow and Block MAC addresses On the wifi modem under the instructions below.
Prevent intrusion If you see an intrusion stealing the Wi-Fi network, you want to block that machine from using Wi-Fi anymore, the first thing you need to know is which machine it is, then remember its MAC Address there.

Next, launch your Web browser, type in the address 192.168.1.1 and then enter the password.
Note: Each different wifi router will have a different login address and password. Visit the modem login account to see more information on how to log in for each type of router.

An interface appears, open Wireless -> Wireless MAC Filtering , select Add New

At MAC address , enter the MAC address of the device you want to block wifi access, at Description Select Wireless MAC Filter One select Enable In the Status section.

Next, return to Filtering Rules And check Deny the stations. And select Enable to turn on theWireless MAC Filtering Function.

So you know how to control and block Wi-Fi and prevent your wifi from being stolen. With this trick, you can now rest assured that your Wi-Fi network is not stolen. Additionally, you can use 9 Ways to do it
FAQ
What do I need before I many People Use Wifi?
Prepare the required device, software, account access, and any files mentioned in the steps. Back up important data before changing system settings.
Why does the process look different on my device?
Menus and options can vary by operating system, app version, device model, or region. Use the closest matching setting and check the official documentation when needed.
What should I do if a step does not work?
Restart the app or device, confirm permissions and connectivity, update the software, and repeat the step carefully. Avoid unofficial downloads or tools.
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