What is 239.255.255.250 network activity and how to stop it?

1. In Resource monitor we see this:

2. This IP was showing up in my resource monitor overt and over, it looks like a virus since the IP looks external, however come to find out its an MS PlugAndPlay discovery UDP protocol alternative., and is only needed if u use Messenger (like anyone uses that anymore), see here for detail from MS: KB Article 317843 on what it is and how to fix it

3. To resolve:

1. Start Registry Editor (Regedt32.exe).
2. Locate and click the following key in the registry:
   HKEY_LOCAL_MACHINE\Software\Microsoft\DirectPlayNATHelp\DPNHUPnP
3. On the Edit menu, click Add Value, and then add the following registry value:
   Value name: UPnPMode

   Data type: REG_DWORD

   Value data: 2
4. Quit Registry Editor.

Boom no more 239.255.255.250 network activity,