Windows can show multiple network connections at once because it treats each active network interface or profile separately. For example, it may show:
- Your actual Wi‑Fi network (the one you recognize by name), and
- Another “Unknown” or “Public” network profile used internally by Windows (for example, for captive portals, VPNs, virtual adapters, or brief connectivity checks).
This behavior by itself is not necessarily a sign of compromise. Windows uses the Network Connectivity Status Indicator (NCSI) and Network Location Awareness (NLA) services to probe connectivity and classify each connection as domain, private, or public, and to decide which firewall profile to apply.
Regarding whether the home network should be private:
- Yes, a home network should normally be set to Private, so that file/printer sharing and device discovery can work between trusted devices.
- Public networks (like coffee shops or airports) should be set to Public for stricter firewall rules.
To improve security and clarity:
- Ensure the home Wi‑Fi uses a modern security standard (WPA2 or WPA3) and a strong password. If Windows reports the Wi‑Fi as “not secure,” follow the guidance to update router security or switch networks.
- Verify that the home network is set to Private so other trusted devices can see it, and that unknown or guest networks are set to Public.
- Never allow automatic connection to public Wi‑Fi networks that are not under personal control, and periodically remove (“forget”) networks that are no longer needed.
If the “unknown” network persists and is not associated with any device or adapter intentionally installed (such as VPN software or virtual machines), consider disconnecting from Wi‑Fi, forgetting unused networks, and reconnecting only to the trusted home network.
References:
- An Internet Explorer or Edge window opens when your computer connects to a corporate network or a public network
- Wi-Fi network not secure in Windows
- Firewall and Network Protection in the Windows Security App
- Be safer over wireless connections
- Advanced troubleshooting wireless network connectivity
- Connect Surface to a wireless network