Network and Sharing Center

Downloading the latest graphic driver from Nvidia or ATI is a greathint, but some unsolicited friends are waiting to be tweaked on thenetwork traffic too. I’m talking about who is continuously flashinginside your trybar network icon, 224.0.0.252 and 239.255.255.250, orif you prefer Link Local Multicast Name Resolution (LLMNR) andUniversal Plug and Play (UPNP). The first one helps to solve hostnames where DNS fails, the seconds gives to the UPNP complaint devicesthe magic to be easily discovered and configured. As they both try tomake friendly the network administration, equally have pervasivebehavior (multicast) and security issues too.To disable both LLMNR both UPNP you have to act on the NetworkDiscovery of the Network and Sharing Center:1. open Network and Sharing Center by clicking on Start, ControlPanel, Network andInternet, Network and Sharing Center2. click the arrow button to expand the network discovery section3. turn off network discovery and then click Apply.Note: this action affects LLMNR, Netbios, web services discovery, SSDPand UPnP services.If this stop UPNP and LLMNR response, LLMNR requests are still active.To mend this, you need to deactivate LLMNR one time for all: brrr..By the group policy, i.e. Windows Vista Business / Ultimate or insidea domain:1. click start, type gpedit.msc and press enter2. by the left pane go to Computer Configuration\AdministrativeTemplates\Network\DNS Client3. on the right pane set Turn off Multicast Name Resolution toEnabled.By the registry, i.e. Windows Vista Premium:1. click start,