Delete devices connected to broadband router

[Dimarkey8686]

Is it possible to delete devices that are connected to my WiFi? 
Block, delete, remove or pause. Any way to get them off? 

[Ripshod]

You could try the mac filters, but even young juveniles know how to bypass those. 

Don't let anyone connect to the lan and don't give out your WiFi details - simples.

What exactly do you want to do? 

[Dimarkey8686]

No one other than my children who live here have connected but there are lots of devices on my WiFi I don’t recognise.

I’ve listed ours and there are a number on there not owned by us. Only had this internet a matter of days and no one else has the details.

I saw the Mac filters way but I don’t have that option on my router admin.

[Ripshod]

Then give the children access only to the guest wifi. 

Points to note - in the logs if you see a device connected to the wifi with an RSSI of 0(zero) it's not actually connected but has tried. Also, most devices these days will use a random MAC by default. Best to use mac filters and force the kids to use their device MACs. Instructions can be googled - other search engines are available  

[Cynric]

@Dimarkey8686 Are you sure that these devices are connected? Can you ping them? Also turn off uPNP it's a security risk.

[billhinge]

Turn Wifi off, change password/SSID, turn back on?