

Devices where this might be necessary include, but are not limited to your PC, Mac, NAS drive and Wi-Fi router. Note: You should refer to the relevant documentation for your devices and software to determine how you enable the UPnP service. For this reason, the UPnP service on some or all of your devices may be disabled by default. The UPnP service automatically grants access to devices declaring themselves to be UPnP compliant, so in certain professional or commercial environments it is not recommended as it offers inherently weak security. Both protocols were developed to simplify the way networked media devices can find, connect, and communicate with each other within a network. It is also compatible with devices that support the Digital Living Network Alliance (DLNA). There are many ways of sharing files within a computer network, but the 851N use a specific media sharing protocol called Universal Plug and Play (UPnP).
