Internet-Security raven logo internet-security.com

TCP 10243

ProtocolTCP
Port10243
Labels

Synopsis

  • TCP port 10243 is used by Microsoft’s Windows Media Player Network Sharing Service (WMPNetworkSvc).
  • On Windows Vista/7/8/10/11, enabling media streaming/Play To/Cast to Device makes WMPNetworkSvc listen on 10243 to serve media via DLNA/UPnP (over HTTP).
  • Windows Firewall includes a built‑in rule named “Windows Media Player Network Sharing Service (HTTP-In)” that opens TCP 10243 for this purpose.
  • Real-world examples: streaming from Windows Media Player 12 to an Xbox 360/Xbox One, a DLNA-capable smart TV (e.g., Samsung/LG), or a PlayStation 3 uses this port.
  • Historical Windows HomeGroup media sharing also leveraged TCP 10243 for WMP-based streaming.

Observed activity

Last 30 days Detailed chart

More information