AC1900 Modem Router C7000 Unknown Wired Device Showing under Attached Devices

I routinely encounter this very same problem with routers from both Netgear and Linksys.  I restart my routers and modems every month and after the restart I have what I call "phantom devices".  I have "phantoms" for both wired and wireless devices.  Like you, I can't understand how the network map shows more wired devices than I have ethernet cables plugged into my router.  Sometimes the router will show one or other of our cell phones as both a wired connection and a wireless connection!  And the description for "phantom" wireless devices are usually useless for trying to determine what that device actually is.  Is it the wireless doorbell, wireless garage door openers, wireless baby monitor, wireless standby generator, etc.

I have posted this problem in both Netgear and Linksys official forums and received no satisfactory responses.  Heck, they won't even provide appropriote device icons to use in the network map for many wired and wireless devices.  Like you I always "boot" unknown devices even the wired connection that does not exist!

This is a legacy problem that has existed for several years.  If you look in this forum you will see other customers complaining about this same issue for their particular router model.  It is time for router makers to address this problem.

What Netgear device are we talking about there?

AC1900 is not a reliable guide to model number. Many devices come with an AC tag, but it is essentially a label that Netgear, and other brands, attach to hardware to describe wifi speeds.

The C7000 cable modem/router is one of those devices, but it is nothing like any of the Mobile Routers, Hotspots & Modems covered in this bit of the community.

You might get more help, and find earlier questions and answers about your hardware, in the appropriate section for your device. That's probably here:

Cable Modems & Routers

Dies connect all wired devices accept for 1 wired PC to see if the extra phantom device appears after you reboot the modem. 

Try a factory reset and setuo from scratch as well with with 1 wired PC connected only and see. 

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mgftp wrote:

Hi, I had to reset my router due to a power surge.  After setup I noticed that it was showing two wired devices connected when I only had one connected. I ended up blocking this device with the Device Name of "ICP" but am left wondering what it is?  And how I can have 2 wired devices connected when I have only one ethernet cord coming out and going to one PC.  Any insight would be appreciated.  Thank you. 

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