Unauthorized WiFi use can slow the connection and create privacy or security risks. A neighbor may have received the password from someone, guessed a weak password, or connected through outdated security.

Removing unknown users requires changing access credentials and reviewing router settings.

Check Connected Devices

Open the router application or administration page.

Review every connected device and compare it with household equipment.

Unclear names may belong to smart products, so disconnect devices carefully during identification.

Watch unknown connection signals such as unfamiliar manufacturers or activity when nobody is home.

Change the WiFi Password

Create a long, unique password.

Do not use names, addresses, phone numbers, or simple patterns.

Reconnect only trusted devices.

Avoid sharing the new password widely.

Use WPA2 or WPA3

Enable WPA3 when supported by all necessary devices.

Use WPA2 when older trusted equipment requires it.

Disable WEP and original WPA.

Strong wireless access protection makes password guessing and interception more difficult.

Change the Administrator Password

The router administrator password controls settings.

Replace the default credentials with a unique password.

Do not make it the same as the WiFi password.

Disable remote administration unless required.

Turn Off WPS

WPS allows simplified device connection.

Disable it when it is not needed.

Some older implementations create avoidable security concerns.

Connect new devices by entering the WiFi password manually.

Rename the Network

Choose a neutral network name that does not reveal your identity or address.

Avoid names that invite attention.

Changing the name forces devices to connect to the updated network.

Do not include the router model.

Update Router Firmware

Install the latest firmware.

Enable automatic updates when available.

Replace routers that no longer receive support.

Updated software closes known weaknesses.

Create a Guest Network

Give visitors access through a separate guest network.

Use a different password and enable isolation when supported.

Turn the guest network off when it is not needed.

Good visitor access management prevents the primary password from spreading.

Block Unknown Devices

Some routers allow device blocking.

Blocking can remove one device temporarily, but changing the password is more reliable.

A blocked user may return with another device address.

Use blocking as an additional control rather than the only solution.

Monitor the Network

Review connected devices regularly.

Check after sharing guest access or adding new smart products.

Use routine WiFi security checks to keep the device list organized.

Stopping neighbors from using WiFi requires strong encryption, new passwords, updated firmware, and controlled guest access. The most important step is changing both the WiFi and administrator passwords.