Port | 5357

If you’ve ever run a network scan using netstat , nmap , or glanced at your firewall logs, you might have spotted an unfamiliar entry: Port 5357 .

If you see it on your personal PC behind a home router—. If you see it on a server or a public WiFi machine— disable network discovery immediately . 5357 port

Let’s demystify Port 5357. Port 5357 is typically used by Microsoft’s Web Services for Devices (WSD). It hosts a simple HTTP server that allows your Windows computer to discover and communicate with network-connected devices like printers, scanners, media servers, and IoT gadgets. Why Does Windows Open This Port? Modern networking relies on devices finding each other automatically. In the past, you manually entered IP addresses. Today, protocols like WSD (Web Services on Devices) make it "plug and play." If you’ve ever run a network scan using

Know your ports. Know your risk. Have a mysterious port you’d like decoded? Leave a comment below. Let’s demystify Port 5357

It doesn’t have the instant recognition of Port 80 (web) or Port 443 (HTTPS). So what is it? Is it a backdoor? A virus? Or just part of your operating system doing its job?

netstat -ano | findstr :5357 You’ll see a PID (Process ID). Then run: