Eliminate network user

[Orlando3]

How can I eliminate a device connected to my network? I have connected an unusual device to my network and I can't eliminate, what can I do?

[KeithFrench]

The best way is always to change your WiFi password to something longer & stronger. MAC address filtering can be used, but it is not that effective these days, as MAC addresses can be easily spoofed. I cannot be more precise, as you haven't told me the make/model of the router that you have.

[Orlando3]

The issue is I think someone is stealing internet from my router because I can't recognize the device, but I don't know how to block the access, there is any way to block the access to an unknown device?

[KeithFrench]

Please can you elaborate, I cannot answer your question without knowing the make/model of the router that you are using & what this device is?

If you have connected it to your WiFi & now don't want it, turn it off or tell it to forget the WiFi network.