Networking & Wireless forum


a cell phone (not mine) keeps showing up on network

by voodooevil / March 30, 2013 10:11 PM PDT

I have an asus rt-n66u hooked up to my arris wifi modem (set to bridge).
all firewalls are set to on. my wireless devices are android phone, apple phone, satellite receiver, notebook, blueray, and a Microsoft surface tablet.
for some strange reason a verizion Motorola droid keeps showing up on my network when I look at network map on my tablet and pc. I only see its mac address. its very strange that it seems that I don't see it on the router itself, just my own wifi items (I think I don't see it)
anyway how can this happen? I have wpa2 set up and do not have guest acess on.
thanks for any help.....

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Clarification Request
What security on the WiFi did you use?
by R. Proffitt Forum moderator / March 31, 2013 1:57 AM PDT

It's not at all strange to see this but I didn't find what security you used.

WEP is broken by small children in seconds (about 15).
WPA is broken in about 2 hours by teenagers.
WPA2 is broken in about a day by adults with credit cards.

There's a lot to cover about security on WiFi but let's hear more from you.

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i use wpa2
by voodooevil / March 31, 2013 2:14 AM PDT

Thanks for responding.
I use wpa2

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Then block it.
by R. Proffitt Forum moderator / March 31, 2013 2:18 AM PDT
In reply to: i use wpa2

Some routers have a way to block it but you can simply change the password and it takes about a day and currently 12 bucks to crack it again. I have yet to see any do it yourself cracking on WPA2 in the wild that is easy enough for most.

If that fails, note the bad MAC address and we get to see if your router can block a specific MAC. That's called black listing. Most routers did the opposite in they supported white listing.

Either way, kinda painful but given the issues of allowing others on your network, I'd move against this unauthorized use.

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tried changing password
by voodooevil / March 31, 2013 4:00 AM PDT
In reply to: Then block it.

I changed password and that Verizon phone is back on my network.
I dont understand.
Its weird, when I use my arris gateway modem alone I do not see the Verizon phone.
I don't know why the Asus router is allowing it.

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(NT) Now it's time for MAC filters.
by R. Proffitt Forum moderator / March 31, 2013 9:53 AM PDT
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i gave up
by voodooevil / March 31, 2013 10:54 PM PDT

Thanks for all your help,
I just switched to the arris 3.0 gateway modem.
The Verizon cell phone is gone from network now. Asus modem just gave me too many problems, and they do not offer easy tech support solution.
Thanks R profit....


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