How to Block a Device from Your WiFi Network

Method 1 — Block via the router admin panel (most reliable)

Most modern routers let you block specific devices directly from the admin interface without changing your password.

1. Open your router's admin panel: type http://192.168.1.1, http://192.168.0.1, or http://10.0.0.1 in your browser (confirm the right IP via ipconfig/Default Gateway).
2. Log in with your admin credentials (on the sticker on the router).
3. Go to the Connected Devices, Device List, or DHCP Clients page — this lists every device currently on your network with its name and MAC address.
4. Find the device you want to block. Look for its device name (e.g. "John's iPhone") or identify it by MAC address.
5. Click Block, Deny, or select Blacklist next to that device. On some routers this is under Access Control or Parental Controls.

Where to find the block option by router brand

• Netgear: Advanced → Security → Access Control → Set up Access Control → Add (block mode)
• TP-Link: Advanced → Security → Access Control → Blacklist
• Asus: AiProtection → Network Protection → Adaptive QoS → Device Blocking (or Parental Controls)
• Linksys: Wi-Fi Settings → Device List → select device → Block
• Xfinity: Use the Xfinity app → Connect → your network → Edit Device → Pause Device
• Eero: eero app → choose device → Block device
• Google Nest: Google Home app → device → Block

Method 2 — MAC address filtering

MAC filtering lets you create an explicit blocklist of hardware addresses that cannot connect, even if they know your WiFi password.

1. Find the MAC address of the device to block (from the Connected Devices list in your router admin, or from the device itself).
2. In the router admin panel, find MAC Filtering or MAC Address Control under Wireless or Advanced Settings.
3. Enable MAC filtering in Deny mode (not Allow mode — Allow mode blocks everyone not on the list).
4. Add the MAC address of the device to block. Save.

Limitation: Tech-savvy users can spoof a MAC address. MAC filtering is effective against ordinary devices (phones, smart TVs, tablets) but not against a determined user who knows they've been blocked.

Method 3 — Change your WiFi password

The simplest method — change your WiFi password and don't give the new one to the person whose device you're blocking. All current devices will disconnect and need to reconnect with the new password.

1. See the change WiFi password guide for step-by-step instructions.
2. Reconnect all your own devices with the new password.
3. Do not share the new password with whoever you want to block.

This is the most reliable method — MAC spoofing doesn't help if they don't have the password. The downside is you need to reconnect all your devices.

Set up a guest network instead of blocking

If you want to give visitors or household members internet access but prevent them from accessing your local devices (smart home, NAS, printers), a guest WiFi network is a better approach than blocking. Guest networks provide internet access with network isolation — guests can't see your local devices at all.