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According to online community discussions, such as this Linus Tech Tips forum thread , this issue is frequently linked to GM vehicles, specifically Chevy Bolt EUV models.

The most common scenario is that a neighbor's car is parked close enough to your home that its Wi-Fi hotspot or Bluetooth connectivity reaches your PC.

to isolate your main devices.

to permanently block it.

When this device appears, it often shows a MAC address but no IP address, indicating that it is broadcasting its presence but not actively consuming data on your LAN. Why is it on Your Network?

The "Windows Connect Now" service (also known as WCNCSVC) is responsible for listing these types of devices. Disabling it can solve the problem. Press , type services.msc , and hit Enter. Locate Windows Connect Now - Config Registrar .