Solved Mysterious Clients

[SteveR]

My router is an Asus RT-AC3100. Recently we've added a lot of devices to our home network. Two new wireless clients have appeared. One is: audiocast the other is: espressif. I've been wondering what their source is. (smartphones apps?) I did spend some time looking at audiocast but didn't find anything. The Asus router seem unaffected by these unknown wireless clients. I just blocked these clients from accessing the internet. See if anything happens. Anyway to figure-out the source of these wireless clients?

 

[degrub]

Turn off all of your IOT devices and add them back one at a time until those names show up.

 

[SteveR]

Turn off all of your IOT devices and add them back one at a time until those names show up.

Already tried that with audiocast. Could not discern any underlying program (app).
Good news with espressif. I recently bought an internet radio. It stopped working when I blocked espressif from accessing internet right after my first post. Internet radio back to working now.

 

[SteveR]

Some progress with audiocast. Installed Nmap from the Linux Mint repository. Results below. Evidently LG Innotek is an LG product. We do have an LG TV which we have had for years before audiocast showed-up.

Nmap scan report for audiocast.Stargate (192.168.50.177)
Host is up (0.058s latency).
MAC Address: DC:03:98:7F:B8:AE (LG Innotek)

The article below is crap, but haven't found a better one.

Uncovering What LG Innotek Is: A Comprehensive Guide to Finding It On Your Network

Discover the answer to the question: What is LG Innotek on my network? Learn about this technology provider that offers advanced components for networks, computers, and TV displays. Explore what LG Innotek can do to provide high-quality performance and reliability in today's digital world.

solidarity-project.org

What to do when an unknown device is connecting to your Wi-Fi

Here’s how to work out what an unknown device is on your network and how to prevent it from connecting to your router.

www.techadvisor.com

Will still periodically continue to look into this.

 

[degrub]

did you recently allow the TV to update ?

 

[SteveR]

TV updates are automatic and have been going on for years. I just get get a message, after the fact, that the TV was updated. The article below is good. Have not finished exploring it yet.

How to See All Devices on Your Network With nmap on Linux

Wondering exactly what's connected to your home network? Here's how to use nmap and other Linux utilities to find out.

www.howtogeek.com

 

[SteveR]

The origin of audiocast as a device on the router is the LG SP8YA 3.1.2CH Sound Bar.

Today I took a more aggressive step. I physically turned-off (power strip) the power to the TV, soundbar, and Roku. By physically turning off the power to TV, soundbar, and Roku; audiocast disappeared from the client list on the router. When I turned on the TV, but not the soundbar, audiocast did not come back. When I turned on the soundbar by itself, audiocast did comeback. When I unplugged the soundbar, audiocast once again disappeared.