How to Block a Device on Your Network
Remove an unwanted device from your WiFi using MAC address filtering or the router's access control list.
Updated 2026
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1
Identify the device
Log in to your router and open the connected-devices list to find the device's MAC address and hostname.
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Option 1 — Use Access Control / MAC filtering
Find Access Control, MAC Filter, or Wireless MAC Filtering in the admin menu. Add the device's MAC address to the block list.
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Option 2 — Remove and change the password
The quickest method: change your WiFi password. All devices (including the one you want to block) will disconnect. Reconnect only your own devices.
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Option 3 — DHCP block
Some routers let you set a device to deny in the DHCP client list, preventing it from getting an IP address.
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Save and verify
Apply the rule. The blocked device should lose connectivity within seconds or on its next connection attempt.
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Monitor for re-attempts
Check the router log or connected-devices list periodically to confirm the device stays off.