Community Forum

Unknown device got in my network

Highlighted
New Poster

Unknown device got in my network

Hi all, the last two days an unknown device “Sercomm” has connected to my network and I don’t have any items like like IP cams or window or door sensors. I looked this up and it’s a home management system, which I don’t have! All it show is MAC address and host name. I have two ring cams/doorbell which I can identify. A couple amazon plugs (identified) and an echo (identified). I paused the Sercomm device and it came back (with different numbers after Sercomm) the next day even after I changed my password and all my devices. Any ideas?
Highlighted
New Poster

Re: Unknown device got in my network

Just received a notice at 3AM....following
Highlighted
Silver Problem Solver

Re: Unknown device got in my network

With xFi, when it sees a new device, I identify it by th MAC address and assign a name and user.

Check all your devices and see if you can find their MAC address.  I have a mobil app that helps:

https://apps.apple.com/us/app/network-analyzer/id562315041

 


I am not a Comcast Employee.
I am just a customer, volunteering my time to help other customers here in the Forums.
Was your question answered? Mark the post as best answer!
Highlighted
Frequent Visitor

Re: Unknown device got in my network

Following, because I've had probably SIX of these pop up in the last hour. WTH?
Highlighted
New Poster

Re: Unknown device got in my network

Just had several of these as well.

 

Anyone ever find out what was happening?

Highlighted
Expert

Re: Unknown device got in my network

Their Advanced Security feature has recently been pushed to their gateway devices via a firmware update whether you want it or not, hence the hypochondriac notices. It's buggy.

We've seen many many posts about this here lately ! The work-around is to disable the Advanced Security and not use it for now, it's buggy.;


https://www.xfinity.com/support/articles/using-xfinity-xfi-advanced-security



I am not a Comcast Employee.
I am a Customer Expert volunteering my time to help other customers here in the Forums.
We ask that you post publicly so people with similar questions may benefit from the conversation.
Was your question answered? Mark the post as Best Answer!