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Determine who or what is on my home network, with MAC and IP

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Last Modified: 2013-12-27
I have a older Linksys router, I have it set to only allow my MAC addresses I add to it but when looking at the DHCP leases I see a MAC address with a IP that I don't recognize and is not in my MAC filter list.

Is there a way I can determine exactly what this device is or if it is someone that should not be connected? I have broadcasting disabled too, and WPA2.

I tried RDP and web browsing to the IP but could not connect. I don't think the IP would ping either.

P.S. Something else I need to add it I just installed a Intel Dual Band Wifi AC Adapter that is also a Blue Tooth receiver. I dind't really check before installing the card and when setting up the new MAC I noticed the DHCP lease that I didn't recognize. Is there a chance that could be from the Blue Tooth card?
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Qlemo"Batchelor", Developer and EE Topic Advisor
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Great, thanks for the tips. I will run some of these tools and see what's going on.

In the event it is a external device is there anything I can do to stop them or block them? I odn't think my router will allow me to block and filter MAC's at the same time.

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